Bluetooth version: version 4.0

Bluetooth range: 10-15m

Signal-to-noise ratio: >90dB

1. Supports to read TF card/USB flash drives up to 32GB

2. Supports FM radio: 87.5-108MHz

3. Supports stereo aux function

4. Wireless Bluetooth handsfree function

5. Speaker: 2 pieces 4Ω 3W high quality magnetic-proof high-fidelity speaker

6. Frequency range: 100Hz-20kHz

7.USB port: micro USB2.0

8. Power mode: USB charging/5V charger

9. Sound quality from professional music expert

10. Long time battery last-time, 8H talk time and music Compatible with Bluetooth phones, MP3/MP4 players/CD/PC/MAC/PSP/iPhone/iPad, built-in Lithium battery 1200mAh Supports A2DP, AVRCP, headset, handsfree profile

Wireless charger specification:

1.input voltage：9V-1.67A/5V-2A

2.transmitting power：5W

3.output current：9V-1.1A/5V-1A

4.transmission distance：10mm

5.charge efficiency：73%

6.operating frequency：100-150KHZ