A20 Dual USB Charging Bluetooth FM Transmitter MP3 Player Car Kit, Support Hands-Free Call & TF Card & U Disk(Black)

1. Built-in microphone, support hands-free.

2. CVC noise suppression, full duplex communication technology.

3. Stereo FM radio.

4. A2DP audio transmission technology.

5. Support MP3/WMA/FLAC from TF Card.

6. 5V-2.1A output car charger

7. Digital display.

Parameter:

1. Bluetooth version: V4.2+EDR

2. Frequency response: 20-20KHz

3. Voltage: 5V +/- 0.5

4. Working current: 45mAh(Max)

5. Standby current: 25mAh(Max)

6. Frequency: 2.402-2.480Ghz

7. RF output: 4dBm

8. FM: 87.5-108.0Mhz

9. Effective distance: 5m

10. Dual USB Ports: 3.1A 1.0A