Retekess TT116 Wireless Tour Guide System Instruction Manual

1. Introduction

The Retekess TT116 Wireless Tour Guide System is designed for clear and efficient communication in various settings such as guided tours, simultaneous interpretation, factory visits, and educational environments. This manual provides detailed instructions for the proper setup, operation, and maintenance of your TT116 system.

2. Package Contents

The TT116 system typically includes the following components:

• Transmitter unit(s)
• Receiver unit(s)
• Lanyards
• Microphone(s) for transmitter
• Earphone(s) for receiver
• Type-C Charging Cable(s)

Figure 2.1: Example of TT116 system components (1 transmitter, 10 receivers)

3. Product Overview

3.1 Transmitter Schematic

1. Transmitting antenna
2. Charging indicator (red light: charging, blue light: full)
3. Display
4. Power button
5. M button
6. S button
7. Lanyard mouth
8. + button
9. - button
10. Back clip
11. Battery cover
12. AUX jack
13. MIC jack
14. Type-C charging hole
15. Charging contact of the seat charger

3.2 Receiver Schematic

1. Display screen
2. Power button
3. UP button
4. DOWN button
5. Charging indicator (red light: charging, blue light: full)
6. Lanyard port
7. + button
8. - button
9. Back clip
10. Battery rear cover
11. Headphone jack
12. Type-C charging hole
13. Charging contact of the seat charger

4. Setup

4.1 Charging the Devices

Both the transmitter and receiver units are equipped with built-in rechargeable lithium batteries. To charge:

• Connect the provided Type-C charging cable to the Type-C charging hole (14 on Transmitter, 12 on Receiver).
• Alternatively, use a compatible charging cradle (if available) with the charging contacts (15 on Transmitter, 13 on Receiver).
• The charging indicator (2 on Transmitter, 5 on Receiver) will show a red light during charging and turn blue when fully charged.
• Full charge typically takes 2.5 hours with a 390mA charging current.

Figure 4.1: Transmitter with Type-C charging cable

Figure 4.2: Receiver with Type-C charging cable

4.2 Connecting Accessories

• Transmitter: Connect the microphone to the MIC jack (13) or an external audio source (like an MP3 player or smartphone) to the AUX jack (12).
• Receiver: Connect the earphone to the Headphone jack (11).

Figure 4.3: Transmitter with lanyard and microphone

Figure 4.4: Receiver with lanyard and earphone

4.3 Power On/Off

• Power On: Long press the power button (4 on Transmitter, 2 on Receiver) to turn on the device.
• Power Off: In the power-on state, long press the power button (4 on Transmitter, 2 on Receiver) to turn off the device.

4.4 Pairing (Connecting Transmitter and Receiver)

Ensure the transmitter is connected to a microphone or AUX audio cable, and the receiver is connected to headphones.

Manual Pairing

1. Transmitter Settings: In the unlocked state, short press the "+" (8) or "-" (9) button to adjust the channel (e.g., CH:50).
2. Receiver Settings: In the unlocked state, short press the "^" (3) or "v" (4) button to adjust the channel to match the transmitter (e.g., CH:50). The receiver display will show a "Tall" icon indicating successful connection. You can then listen to the audio signal from the transmitter.

Automatic Search and Pair Connection

1. Transmitter Settings: In the unlocked state, short press the "+" (8) or "-" (9) button to adjust the channel (e.g., CH:50). Press and hold the "M" button (5) to enter pairing mode. The screen will display the channel number (e.g., CH:50) and flash, waiting for the receiver to search for the code. Short press the "M" button (5) or "S" button (6) to exit pairing mode after successful pairing.
2. Receiver Settings: No operation is needed on the receiver for automatic pairing. The receiver will automatically enter pairing mode if not connected. The "Q" icon and "" icon will alternate on the screen. After successful pairing, the channel number will automatically jump to the transmitter's current channel. If the screen is off, it will light up once after successful pairing.

Note: The pairing distance is controlled within 5 meters.

5. Operation

5.1 Video Demonstration

Video demonstrating power on/off, channel adjustment, screen lock, and mute function.

5.2 Channel Adjustment

In the unlocked state, short press the "+" (8) or "-" (9) button on the transmitter, or "^" (3) or "v" (4) button on the receiver, to change the channel.

5.3 Volume Adjustment

Short press the "+" (8) or "-" (9) button on the receiver to adjust the volume. There are 10 levels (0-9). The default volume is 5 when powered on.

5.4 Mute Function

• Activate Mute: In the unlocked state, short press the power button (4 on Transmitter) or "^" button (3 on Receiver). The mute icon will be displayed, and the receiver will not receive voice signals.
• Deactivate Mute: Short press the power button (4 on Transmitter) or "^" button (3 on Receiver) again. The mute icon will disappear, and the receiver will receive voice signals.

Figure 5.1: Transmitter with one-key mute function

5.5 Screen Lock/Unlock

• Lock: In the unlocked state, if there is no operation for 30 seconds, the buttons will automatically lock, and a lock icon will be displayed. The screen will turn off after another 30 seconds. Press any key to light up the screen.
• Unlock: Press and hold the "S" (6) and "M" (5) buttons simultaneously on the transmitter, or "^" (3) and "v" (4) buttons simultaneously on the receiver. The lock icon will disappear.

5.6 One-Key Shutdown (Transmitter only)

In the unlocked state, press and hold the "S" button (6) on the transmitter to activate the one-button shutdown function. A shutdown icon will be displayed, and all successfully paired receivers will be remotely turned off.

5.7 Noise Reduction

The system supports noise reduction to deliver clear audio.

Figure 5.2: Noise Reduction in action

5.8 Multi-Channel Operation

The TT116 offers 50 channels, allowing multiple groups or guides to operate simultaneously in the same area without interference.

Figure 5.3: Multi-channel capability

5.9 External Audio Input (Transmitter)

The transmitter supports external audio input via the AUX jack (12), allowing connection of devices like MP3 players or smartphones.

Figure 5.4: Transmitter AUX and MIC audio input

6. Specifications

Figure 6.1: Dimensions and weights of TT116 units

Figure 6.2: Battery specifications and working hours

7. Maintenance

• Battery Care: The built-in lithium battery provides approximately 10 hours of operation for the transmitter and 13 hours for the receiver. Recharge fully before extended storage.
• Cleaning: Unplug the charger from the AC outlet before attempting any maintenance or cleaning. Use a soft, dry cloth to clean the devices.
• Storage: Store the devices in a dry environment. Avoid extreme temperatures and moist conditions.
• Disposal: Do not dispose of electrical and electronic products, batteries, and accumulators as unsorted municipal waste. Utilize designated collection locations at the end of their working life, in accordance with local laws.

8. Troubleshooting

• No Signal/Audio: Ensure both transmitter and receiver are powered on and charged. Verify that they are paired to the same channel. Check all cable connections (microphone, earphone).
• Out-of-Bounds Reminder: If the receiver moves beyond the effective working area (approx. 200m in open space), an out-of-bounds reminder may activate. Move closer to the transmitter to restore connection.


Figure 8.1: Out-of-bounds reminder

• Automatic Shut-down: The system will automatically shut down after 10 minutes if no signal is detected. This is a power-saving feature.
• Pairing Issues: If automatic pairing fails, try manual pairing. Ensure devices are within 5m during the pairing process.

9. User Tips

• Using AUX Input: The transmitter features an AUX input, allowing you to connect external audio sources like sound mixers or smartphones for a richer audio experience during your tour or presentation.
• Receiver Audio Type: The receiver's headphone output is typically mono, optimized for clear voice transmission in tour guide systems.
• Optimal Placement: For best performance, ensure the transmitter's antenna is extended and positioned clearly. Avoid placing devices in pockets or under clothing that might obstruct the signal.
• Battery Management: Regularly check the battery indicators on both units. Fully charge devices before each use to ensure uninterrupted operation.

10. Safety Information

10.1 RF Energy Exposure and Product Safety Guide

ATTENTION! Before using this radio, read this guide which contains important operating instructions for safe usage and RF energy awareness and control for compliance with applicable standards and regulations.

This radio uses electromagnetic energy (RF) for communication. Improper use of RF energy can cause biological damage. All Retekess radios are designed and tested to meet government-established RF exposure levels. Follow these instructions to control RF energy exposure and ensure compliance.

• DO NOT operate the radio without a proper antenna attached.
• DO NOT transmit for more than 50% of total radio use time.
• Turn off the radio in areas sensitive to electromagnetic radiation (e.g., hospitals, aircraft, blasting sites).
• The device complies with RF specifications when used at 5mm from your body. Third-party belt-clips, holsters, and similar accessories should not contain metallic components.

10.2 Avoid Choking Hazard

WARNING! Small Parts. Not for children under 3 years.

10.3 Protect Your Hearing

WARNING! Excessive sound pressure from earphones and headphones can cause hearing loss.

• Use the lowest volume necessary.
• Turn down the volume before adding a headset or earpiece.
• Limit the amount of time you use headsets or earpieces at high volume.
• Do not place the radio's speaker directly against your ear.

10.4 Avoid Burns

WARNING! If a damaged antenna comes into contact with the skin, a minor burn can result.

• Do not use any portable radio that has a damaged antenna.
• Exercise care when handling batteries, especially when placing them with metal objects.
• The transceiver's radiator and chassis may become hot during long transmissions.

10.5 Safety Operation

WARNING! Do not use charger outdoors or in moist environments. Do not disassemble the charger.

• Use the charger only in dry locations/conditions.
• Do not operate the charger if it has been broken or damaged.
• Do not place a portable radio in the area over an airbag or in the airbag deployment area.
• Pull by the plug rather than the cord when disconnecting the charger.
• Unplug the charger from the AC outlet before maintenance or cleaning.
• The adapter shall be installed near the equipment and be easily accessible.
• Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to instructions.

10.6 Approved Accessories

WARNING! This radio meets RF exposure guidelines when used with Retekess accessories supplied or designated for the product. Use of other accessories may not ensure compliance.

For a list of Retekess-approved accessories, visit http://www.Retekess.com.

11. Warranty and Support

11.1 Guarantee

Most new products carry a two-year manufacturer's warranty from the date of purchase. This guarantee card should be kept by the user; no replacement if lost.

Exclusions from Warranty Coverage:

• Any product damaged by accident.
• Misuse or abuse of the product, or unauthorized alterations or repairs.
• If the serial number has been altered, defaced, or removed.

11.2 EU Importer

Name: Germany Retevis Technology GmbH
Address: Uetzenacker 29, 38176 Wendeburg

11.3 Manufacturer Contact

Manufacturer: Henan Eshow Electronic Commerce Co., Ltd
Address: 7/F, Sanjiang Building, No.170 Nanyang Road, Huiji District, Zhengzhou, Henan, China
E-mail: support@retekess.com
Web: www.retekess.com