<p>Bluetooth Audio Receiver Supports FM</p> <p>1. Supporting equipment: computers, wired headsets, cars, audio equipment, etc. </p> <p>2. Bluetooth version: Bluetooth bluetooth 4.2 </p> <p>3. Frequency response: 20hz-20khz </p> <p>4. Continuous use time: 4h </p> <p>5. Standby time: 15 days </p> <p>6. Transmission distance (m): 10m </p> <p>7. Input power: 93mw </p> <p>8. Charging time: 0.5-1h </p> <p>9. Battery capacity: 75 mAh </p> <p>10. Battery voltage: 32-4.2v </p> <p>11. Standby current (Bluetooth connected): 15mAA </p> <p>12. Play music current (maximum volume): 25.1mA </p> <p>(TF card 26.3mA) </p> <p>13. Working rated voltage: 4.10V </p> <p>14. Transmission radius: 10M </p> <p>15. Product interface: ACX audio female interface 3.5mm </p> <p>16. Battery cycle life: 300 cycles greater than 80% of initial capacity </p> <p>17. Product size: ellipse 11x14 mm length 59 mm (without back clip) </p> <p> </p> <p>Features: </p> <p>1. Support TF card card function, faster and more stable, no echo and noise </p> <p>2. Support one belt two, play is not boring, support to connect two devices at the same time, abandon single, more fun </p> <p>3. Safe and reliable, strong battery life, battery installed protection circuit, providing overcharge, overload, short circuit protection </p> <p>4. Effectively extend battery life </p> <p>5. If you want to change it, the headphone cable can be changed freely, so that you can solve the trouble that the earphone and the device cant be separated.</p>