Introduction
Thank you for choosing the Tenmiya A66 Portable Bluetooth Speaker. This manual provides detailed instructions for setting up, operating, and maintaining your speaker to ensure optimal performance and longevity. Please read this manual thoroughly before using the product and keep it for future reference.
The Tenmiya A66 is a versatile 30W portable Bluetooth speaker designed for both indoor and outdoor use. It features integrated Bluetooth 4.2 for wireless connectivity, FM radio, colorful LED lights, and multiple playback options including USB, AUX, and TF Card. Enjoy powerful stereo sound with heavy bass, perfect for parties, gatherings, or personal listening.
Package Contents
Please check the package for the following items:
- 1 x A66 Bluetooth Speaker (with built-in 4000mAh rechargeable lithium battery)
- 1 x Remote Control (batteries not included)
- 1 x AUX Cable
- 1 x USB Cable
- 1 x Shoulder Strap
- 1 x User Manual
Product Overview

Figure 1: Front view of the Tenmiya A66 Portable Bluetooth Speaker, showcasing its main body, handle, control panel, and vibrant colorful LED lights on the speaker grilles.

Figure 2: Close-up of the speaker's control panel, highlighting the various buttons, knobs, and input ports including USB, AUX, TF card slot, and microphone inputs.
Setup
1. Charging the Speaker
Before first use, fully charge the speaker. Connect the provided USB cable to the speaker's DC 5V input port and the other end to a compatible USB power adapter (not included). The charging indicator light will turn off once the speaker is fully charged.
2. Remote Control Battery Installation
The remote control requires two 1.5-volt AAA batteries (not included). Open the battery compartment on the back of the remote control, insert the batteries with correct polarity, and close the compartment.
Operating Instructions
1. Power On/Off
Locate the power button on the control panel. Press and hold to turn the speaker on or off.
2. Bluetooth Connection
- Turn on the speaker. It will automatically enter Bluetooth pairing mode.
- On your smartphone, tablet, or other Bluetooth-enabled device, enable Bluetooth and search for available devices.
- Select "A66" from the list of devices. Once connected, you will hear a confirmation sound.
- The speaker supports Bluetooth 4.2 with a working distance of up to 33 feet (10 meters).

Figure 3: Illustration of the speaker's wireless Bluetooth 4.2 and wired AUX port connectivity options, compatible with various devices like smartphones, tablets, and PCs.
3. FM Radio Operation
- Press the "Mode" button on the speaker or remote control to switch to FM radio mode.
- To auto-scan and save available stations, press and hold the "Play/Pause" button.
- Use the "Previous/Next" buttons to navigate through saved stations.
- You can also manually enter a station frequency using the numeric keypad on the remote control.

Figure 4: The Tenmiya A66 speaker positioned outdoors, highlighting its portable design and FM radio functionality, allowing users to enjoy radio broadcasts on the go.
4. USB/TF Card Playback
Insert a USB flash drive or TF (Micro SD) card into the corresponding slot on the speaker. The speaker will automatically detect the storage device and begin playing MP3 music files. Use the control buttons on the speaker or remote for playback control (play, pause, skip tracks).
5. AUX Input
Connect one end of the provided 3.5mm AUX cable to the speaker's AUX input port and the other end to the audio output jack of your external device (e.g., PC, TV, MP3 player). The speaker will automatically switch to AUX mode. Control playback from your connected device.
6. Microphone Connection (Karaoke)
The speaker features microphone input ports (MC1, MC2). Connect a wired microphone (not included) to either port to use the karaoke function. Adjust microphone volume using the dedicated knob on the control panel.

Figure 5: Depiction of the speaker's karaoke capabilities and various EQ sound effects (Jazz, Rock, Classical, Pop), illustrating its versatility for different music genres and party environments.
7. Colorful Lights Control
The speaker features dynamic colorful LED lights. Use the dedicated light button on the control panel or remote to cycle through light modes or turn the lights off.

Figure 6: The Tenmiya A66 speaker illuminated with cool, vibrant lights, enhancing the atmosphere for outdoor activities like camping, shown under a colorful rainbow.
8. EQ Sound Effects
The speaker offers various EQ sound effects to enhance your listening experience, including Jazz, Rock, Classical, and Pop. Use the EQ button on the remote control to switch between these modes.
Care and Maintenance
- Cleaning: Wipe the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Storage: Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the speaker frequently. Charge the speaker regularly, even if not in use for extended periods. The 4000mAh battery provides approximately 10 hours of playback time on a full charge.
- Water Resistance: This speaker is not waterproof. Avoid exposure to water or excessive moisture.
Troubleshooting Guide
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on. | Low battery or no charge. | Charge the speaker fully using the provided USB cable. |
| No sound. | Volume too low; incorrect input mode; device not connected properly. | Increase speaker and source device volume. Ensure correct mode (Bluetooth, AUX, USB, TF) is selected. Reconnect device. |
| Bluetooth connection fails. | Speaker not in pairing mode; device too far; interference. | Ensure speaker is in Bluetooth mode and discoverable. Move device closer to speaker. Avoid obstacles. Try unpairing and re-pairing. |
| Poor FM radio reception. | Weak signal; antenna not extended (if applicable); environmental interference. | Relocate the speaker to an area with better signal. Perform an auto-scan again. |
| Remote control not working. | No batteries; incorrect battery polarity; remote out of range; IR sensor blocked. | Install two 1.5V AAA batteries with correct polarity. Ensure remote is pointed at the speaker's IR sensor. Reduce distance. |
Technical Specifications
| Feature | Specification |
|---|---|
| Product Type | RS-A66 Bluetooth Speaker |
| Speaker Output Power | 20W + 5W x 2 (Total 30W) |
| Speaker Driver Size | 4" + 2.5" x 2 |
| Frequency Response | 60Hz - 20kHz |
| Input Impedance | 10 kΩ |
| Input Voltage | DC 5V-1A |
| Product Dimensions (L x W x H) | 355 x 160 x 210 mm (13.98 x 6.30 x 8.27 inches) |
| Playback Time | Approximately 10 hours |
| Battery Capacity | 4000 mAh |
| Connectivity Technology | Bluetooth 4.2 |
| Functions | Bluetooth, MP3 Music Player, FM Radio, TF Card, AUX, USB Music Player, Remote Control, Equalizer, Karaoke, Colorful Lights |
| Compatibility | Computer, MP3/MP4 Players, Smartphones, iPods |
Warranty and Support
Warranty Information
This product is covered by a standard manufacturer's warranty. Please refer to the warranty card included in your package or contact your retailer for specific warranty terms and conditions.
Customer Support
For any questions, technical assistance, or issues not covered in this manual, please contact Tenmiya customer support through their official website or the retailer from whom you purchased the product. Please have your model number (A66) and purchase details ready when contacting support.





