1. Bluetooth version: Bluetooth V5.1 2. Support agreement: A2DP/AVRCP/HSP/OPP/GATT/SM 3. Working frequency band: 2.402GHz-2.480GHz 4. Power grade: Power Grade 2 (Class II) 5. Interface type: Input: 3.5mm AUX+RCA+FM+USB+TF interface +6.5 MIC output: 3.5mm AUX+RCA 6. Radio parameters: FM 87.5-108MHz 7. Support format: MP3, WAV/WMA/APE/FLAC/G729 / : M4A/ALAC/AMR/DTS/MIDI/G726 / MTY 8. Screen size: 36*8MM 9. Built-in battery: 3.7V/1200mAh 10. Charging current: about 1000mA (MAX) 11. Charging time: about 1.5 hours 12. Battery life: RX about 8H, TX about 8H 13. Charging mode: Type-C 5V/1A 14. Compatible devices: Android, IOS mobile phone and PAD, active speaker, power player and A2DP/ protocol Bluetooth speaker or headset connection
