**1. product size: 97 x 90 x 97 mm
**3. Basic Function: Bluetooth + AUX + Hands free
**4. Speaker driver: stereo, 40mm*1, 4Ω , 3W
**5. Speaker output: 3w
**6. Frequency Response: 60Hz-20KHz
**7. Signal-to-Noise Ratio: ≥90db
**8. Distortion Rate: ≤1.0%
**9. Bluetooth transmission distance: 10 meters
**10.Bluetooth compliant: V3.0+EDR
**11.certification CE, ROHS, FCC, BQB
**12.Built-in lithium battery:3.7v/500Mah,Work Time: 4 hours