JOYROOM JR-CB1 Wireless Receiver
Product Diagram
LED power/volume level display: Shows battery status and volume level.
3.5mm audio port: Connects to audio devices via cable.
Volume up/Next: Button for increasing volume or skipping to the next track.
Multifunctional button: Primary button for power, pairing, calls, and playback control.
Volume down/Previous: Button for decreasing volume or going to the previous track.
Microphone: Built-in microphone for calls.
Type-C charging port: Port for charging the device.
Basic Parameters
- Name: Wireless Receiver
- Model: JR-CB1
- BT version: V5.3
- Supported protocols: HSR/HFPA/DRW/RCP
- Audio decoding: 580
- Transmission distance: 12m
- Frequency response range: 20Hz-20kHz
- Microphone sensitivity: -38±2dB
- Working voltage: 3.0~4.2V
- Battery capacity: 300mAh
- Music time: 22h (at 70% volume)
- Talk time: 16h (at 70% volume)
- Charging time: 2h
- Standby time (connected): 27h
- Charging input: 5V=1A
- Product size: 31.4mm x 26mm x 13.4mm
- Net weight: 30g
Packing List
| Wireless receiver | Metal plate | 3.5mm audio adapter | Audio cable | Charging cable | Manual & Warranty Card |
Pairing Operation
- Press and hold the multifunctional button for 2 seconds. The device turns on, indicated by a 1-second light ring illumination (red, green, orange, blue). When the light ring flashes alternatively (red, green, orange, blue), the receiver is ready for pairing.
- Turn on your phone's Bluetooth function and search for the BT device "JR-CB1".
- Connect your phone to the "JR-CB1" device.
- Plug one end of the audio adapter into the wireless receiver.
- Plug the other end into the 3.5mm port of your car audio system.
- Switch the car audio system to AUX mode. You can now use the wireless receiver for music or calls.
Metal Plate Using Method
- Remove the protective film from the metal plate.
- Place the wireless receiver onto the metal plate.
- Attach the metal plate to the car's dashboard.
Common Operations
1. Turn On/Off
Press and hold the multifunctional button to turn the device on or off.
2. Music Function
- Play/Pause: Click the multifunctional button. ▶️ / ⏸️
- Next Track: Press and hold the Volume Up button. ⏩
- Previous Track: Press and hold the Volume Down button. ⏪
- Volume Up: Press the Volume Up button. ?➕
- Volume Down: Press the Volume Down button. ?➖
3. Activate Siri
Double-click the multifunctional button to activate Siri or other voice assistants. ?️
4. Call Function
- Answer/End Call: Click the multifunctional button once. ? / ?
- Reject Call: Long press the multifunctional button for 2 seconds. ??
- Callback: Double-click the multifunctional button. ??
- Switch Call: Press the multifunctional button 5 times. ??
Prompt Tone Instructions
| Event | Prompt Tone |
|---|---|
| Turn on | "doo-doo-doo" sound in rising tone |
| Turn off | "doo-doo-doo-doo" sound in falling tone |
| Connected | "doo-der" sound |
| Disconnected | "doo-doo-doo" sound in falling tone |
| Low battery warning | "di-di-di" sound every 60s |
| Call reminder | Synchronous with the ringtone for iOS system, or "dow" "dow" "dow" sound for Android system that cannot synchronize the ringtone. |
| Siri activated | "di-di" sound |
Receiver Indicator Lights
| Status | Indicator Light Description |
|---|---|
| Turn on | The red, green, orange, and blue lights of the light ring keep on for 1s simultaneously, and the LED display keeps on for 3s. |
| Turn off | The red, green, orange, and blue lights of the light ring keep on for 1s simultaneously, and the LED display flashes 2 times. |
| Ready for pairing | The red, green, orange, and blue lights of the light ring flash alternatively in turns. |
| Connected | The red, green, orange, and blue lights of the light ring flash slowly in breathing light mode. |
| Low battery | When residual power is lower than 3.1V, the ones digit of the LED power display will flash. |
| Charging | The ones digit of the LED power display flashes. |
| Fully charged | The LED power display shows "100" and stays on. |
FAQ
- Issue: Jamming, discontinuity, noise, or current sound.
- Check if the receiver is in low battery condition, as this can cause noise.
- Ensure the receiver is within 12m of the connected device.
- Minimize interference from strong signal environments (e.g., large metal partitions).
- Verify the mobile phone's signal and network are stable.
- Check the audio cable and port for damage; replace if necessary.
- Issue: Receiver cannot be recharged.
- Ensure the charging port and cable are properly connected. Try reconnecting them.
- Use the included charging cable with adapters that conform to national/regional safety standards. Using high-power adapters may cause incompatibility or damage.
- Issue: Receiver's digital display shows an error.
- It is normal for electronic products to have self-power consumption. A display showing less than 100% power on first startup after a full charge is normal.
- Due to current bias and voltage drop during use, if the product's power is depleted, it is normal for it to show a partial power restoration upon restart or recharge after a period.
Safety Criterion
- Follow instructions. Do not disassemble or modify the product to prevent breakdown or fire.
- Do not immerse the product in liquid or wash it with water.
- Use the included charging cable with adapters conforming to national/regional safety standards to charge the receiver. Using incompatible chargers may damage the battery or cause safety issues.
- Use and store the product at normal temperatures (between 0℃ and 40℃).
- Do not block the product's openings, including the charging port, audio port, and microphone.
- Avoid using the product during thunderstorms, as this may lead to abnormal performance or signal interruption.
