Retekess PR16R Amplifier Operation Manual

Product Control Diagram

The Retekess PR16R features the following controls:

• ① Antenna
• ② Recording key
• ③ Next song
• ④ Pause/play
• ⑤ Last song
• ⑥ Mode
• ⑦ Turn on / increase volume
• ⑧ Turn off / turn off volume
• ⑨ TF card jack
• ⑩ U disk socket
• ⑪ Charging port

(Diagram showing the location of these controls on the device)

Description of FM Wireless Microphone

Setup and Use:

1. Turn on the FM wireless microphone and set a frequency. Recommended frequencies are 101.0, 108.0, and 87.5, ensuring no overlap with local stations.
2. Turn on the megaphone host and press 'M' to switch to radio mode.
3. Long press the play/pause button to initiate automatic station search.
4. Once the search is complete, use the next/previous key to match the frequency with the FM wireless microphone for amplification.
5. For subsequent use, turn on the microphone and the loudspeaker host switch to radio mode. If connection fails, repeat steps 3 and 4. For severe noise interference, reset the transmission frequency on the wireless microphone and start from step 1.

*Note: This section applies only to FM wireless models.

Method of Use

1. Fasten the main machine to your waist or shoulder using the provided belt and buckle. Adjust the belt for a comfortable position.
2. Position the microphone on your head, ensuring it is 1-2 cm from your mouth. Plug the 3.5mm jack into the mainframe microphone jack.

Operation Mode

1. Sound Amplification

Turn the power switch to 'on'. A 'ka' sound indicates the device is powered on and ready for use. Insert the microphone into the designated socket. The system defaults to amplification mode. Pressing the 'pause' button will temporarily halt other functions, enhancing amplification. To avoid distortion at maximum volume, maintain a distance of approximately 1 cm between the microphone and your mouth.

2. Mode Key (M)

This key cycles through different modes: U disk, TF card, and FM radio. If a U disk or TF card is inserted, pressing the mode key switches between these sources. If no external storage is present, the mode key can be used to cycle through radio channels. Long-pressing the mode key (approx. 2 seconds) while playing music toggles between single loop ('ONE') and all songs loop ('ALL').

Playback and Functions

3. TF/U Disk Playback

Insert the TF card or U disk into the respective slot according to the device's orientation. Press the 'M' key to enter audio mode and play audio files from the inserted media.

4. FM Radio

1. Pull out the antenna.
2. Press 'M' to switch to FM mode.
3. Long press the play button for over 2 seconds. The screen will display numbers. Release the button to initiate automatic station search and saving. The device will play the first found station.
4. Use the last/next song keys to change channels. Radio reception quality depends on signal strength; testing outdoors or near a window may improve results.

5. Charge

Connect the smaller end of the USB charging cable to the micro USB charging port and the larger end to a computer or USB charger. The charger should be rated 5V/1.5A. A full charge takes approximately 4-6 hours. For the first use, it is recommended to fully charge the battery for optimal performance.

6. Last Song

In U disk, TF card, or FM mode, short press to select the previous track or channel. For FM, it selects the previous channel. For external audio sources, this function is invalid.

7. Next Song

In U disk, TF card, or FM mode, short press to select the next track or channel. For FM, it selects the next channel. For external audio sources, this function is invalid.

8. One-Key Recording

Insert a wired microphone and a USB/TF card. Short press the recording key to start recording. Short press the recording key again to save the recording file to the U disk/TF card.

9. Bluetooth Function Introduction

The Bluetooth name is 'RETEKESS'. Press the 'M' key to enter Bluetooth mode; the display will show flashing blue. On your mobile device, search for 'RETEKESS', select it, and click to pair. A successful connection will stop the flashing display and show 'PAUS'.

Product Selling Points

1. Digital display screen for easy understanding.
2. One-key recording function for quick and easy operation.
3. Multifunctional portable loudspeaker with sound amplifying, digital music playing, and radio functions.
4. Imported high-power amplifier chip and advanced fidelity amplifier master control.
5. High-power speakers delivering clear and loud sound over a wide range.
6. High-capacity, high-safety, environmentally friendly Class A 18650 lithium battery.

Data Parameter

Standard Product Distribution

Remarks: TF card, U disk, USB charging head are optional accessories and can be purchased separately.

Matters Needing Attention

1. For optimal microphone amplification, position the microphone 1 cm from your mouth. If feedback (howling) occurs, reduce the volume or increase the distance between the microphone and the device.
2. Avoid frequent plugging and unplugging of the microphone socket to prevent loosening and poor contact. Ensure correct insertion of the plug.
3. To ensure the longevity of the lithium battery, it is recommended to recharge it after each use. Recharge every two months if the device is not used for extended periods to prevent battery aging.
4. Keep the device away from magnetic objects like bank cards to prevent demagnetization.
5. Use only original or equivalent replacement parts for accessories to maintain optimal performance.
6. Battery Safety: There is a risk of explosion if the battery is replaced improperly. Use only batteries of the same or equivalent type. The operating environment temperature is -10°C to 45°C. Do not expose the battery to sunlight, fire, or overheating. Dispose of used batteries and the device responsibly as they are polluting.

Self-solving of Frequently Asked Questions

1. No Sound

A. If the screen is off, the power supply may be depleted. Charge the device. B. If the screen is on, check if the microphone is plugged in correctly.

2. Loudspeaker Howling

A. Ensure the microphone is worn correctly, with the mark pointing towards your mouth. B. In confined spaces, lower the volume or increase the distance from the device to reduce reverberation.

Guarantee

Remarks:

1. Keep this guarantee card; it is not replaceable if lost.
2. Most new products come with a two-year manufacturer's warranty from the date of purchase. For details, visit www.retevis.com/after-sale/.
3. Warranty and after-sales service can be obtained by contacting the seller or a local repair center.
4. Proof of purchase from the original seller is required for warranty service verification.

Exclusions from Warranty Coverage:

1. Accidental damage.
2. Misuse, abuse, unauthorized alterations, or repairs.
3. Alteration, defacement, or removal of the serial number.

Warnings

Local Government Regulations

Users must be aware of and control their exposure to RF energy to meet occupational requirements. Refer to the RF Exposure Product Label and user manual for information and instructions on controlling RF exposure and complying with regulations.

Compliance with RF Exposure Standards

Your Retekess radio is designed and tested to comply with national and international standards for human exposure to radio frequency electro-magnetic energy.

FCC ID

This radio complies with IEEE (FCC) and ICNIRP exposure limits for occupational/controlled RF environments at operating duty factors up to 50% talk-50% listen. It is approved for occupational use only.

This device complies with Part 15 of the FCC Rules. Operation is subject to two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.

Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

CE

The CE marking indicates compliance with the RED Directive 2014/53/EU, ROHS Directive 2011/65/EU, and WEEE Directive 2012/19/EU. The full text of the EU declaration of conformity is available at www.tivdio.com.

IC ID

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to two conditions: This device may not cause interference, and this device must accept any interference, including interference that may cause undesired operation.

RF energy is generated only during transmission, not during receiving or standby.

Avoid Choking Hazard

Contains small parts. Not for children under 3 years. (Symbol: 0-3)

Protect Your Hearing

• Use the lowest volume necessary.
• Turn up the volume only in noisy surroundings.
• Turn down the volume before adding a headset or earpiece.

Turn off your radio power in the following conditions:

• Before removing or installing a battery or accessory, or when charging the battery.
• In potentially hazardous environments: near electrical blasting caps, in blasting areas, in explosive atmospheres (inflammable gas, dust particles, metallic powders, grain powders, etc.).
• While taking on fuel or while parked at a gasoline service station.

To avoid electromagnetic interference and/or compatibility conflicts:

• Turn off your radio in facilities with posted notices instructing you to do so (e.g., hospitals, health care facilities).
• Turn off your radio when on board an aircraft.

Avoid Burns

Antennas

Do not use a portable radio with a damaged antenna. Contact with a damaged antenna may cause minor burns.

Batteries

Exercise caution when handling batteries. Conductive materials like jewelry or keys can short-circuit the battery, causing it to become hot and potentially cause burns. Keep batteries away from metal objects when not in use.

Safety Operation

Forbid

• Do not use the charger outdoors or in moist environments.
• Do not disassemble the charger, as this may cause electric shock or fire.
• Do not operate the charger if it is broken or damaged.
• Do not place the radio in an airbag deployment area, as it may be propelled with great force during deployment and cause serious injury.

To reduce risk

• Disconnect the charger by pulling the plug, not the cord.
• Unplug the charger from the AC outlet before performing any maintenance or cleaning.
• Contact Retekess for assistance with repairs and service.

EU Importer:

Name: Germany Retevis Technology GmbH

Address: Uetzenacker 29, 38176 Wendeburg