1. Bluetooth version: Bluetooth V5.1
2. Support protocol: A2DP/AVRCP/HSP/OPP/GATT/SM
3. Operating band: 2.402GHz - 2.480GHz
4. Power level: Class 2 (Class II)
5. Sensitivity: -85dBm
6. Signal to noise ratio: 90dB and above
7. Interface type:
- Input: 3.5mm AUX+RCA+FM+USB+TF interface+6.5 MIC
- Output: 3.5mm AUX+RCA
8. Radio parameters: FM 87.5-108MHz
9. Supported formats: MP3/WAV/WMA/APE/FLAC/G729/M4A/ALAC/AMR/DTS/MIDI/G726/MTY
10. Screen size: about 36 x 8mm
11. Battery capacity: 3.7V/1200mAh
12. Charging current: approx. 1A
13. Charging time: about 1.5h
14. Life time: about 8h
15. Bluetooth distance: within 30M (open place)
16. Charging interface: Type-C/USB-C 5V/1A
17. Compatible devices: Android, IOS system cell phones and PAD, active speakers, amplifiers and Bluetooth speakers or headphones supporting A2DP/protocol connected to use
18. Packing list: adapter x1, remote control (including a button battery) x1, FM radio antenna x1, 3.5mm audio cable x1, RCA lotus cable x1, charging cable x1, manual x1
19. Size: about 9.8 x 6.7 x 2.35cm
20. Weight: about 143g

Features:
1. Using Bluetooth 5.1 chip design, more compatibility and stability
2. Bluetooth receive (RX), Bluetooth transmit (TX) two in one
3. Equipped with high-definition LED digital display screen, working status and Bluetooth mode clearly visible
4. Built-in DSP decoding chip, heavy bass effect, the device supports treble / bass button adjustment
5. With NFC function, cell phone induction a touch that is connected
6. Controllable indicator light, soft and non-blinding, the light brightness follows the volume of the corresponding brightening / darkening
7. Support U disk / TF card playback and launch, support MP3 / WMA / SBC / WAV / DTS / A52 / FLAC / AAC / AIF / AMR / APE format
8. Built-in FM radio, one key to automatically search and store the station, the frequency can be adjusted from 87.5 ~ 108
9. Support 5-8m red private mode external remote control, mode / signal / volume / up and down song / mix / microphone and other operations
10. Built-in 6.5mm high-definition microphone, support microphone access singing, built-in anti-whistle design
11. Simple connection, no need to drive or download APP