**1. product size: 17.5*6*4.5cm
**3. Basic Function: Bluetooth + AUX + TF + handsfree
**4. Speaker driver: stereo, 40mm*1, 4Ω , 3W
**5. Speaker output: 5w
**6. Frequency Response: 2.402-2.480GHz.
**7. Signal-to-Noise Ratio: ≥82db
**8. Distortion Rate: ≤1.0%
**9. Bluetooth transmission distance: 10 meters
**10.Bluetooth compliant: V3.0+EDR
**11.Built-in lithium battery:3.7v/1100Mah,Work Time: 4 hours