Specification:
1. Bluetooth：5.0

2. Charging Voltage：5V

3. RMS power：16W

4. Speaker Spec: 40mm,2Ω,8W

5. Ultra-long standby time: 8-10 hours

6. Frenquency Response：65HZ-18KHZ

7. Lithium Battery Capacity：4000mAh

8. THD：≤0.5%

9. SNR：≥90db

Features

1. 16W outpower stereo sound speaker

2. IPX6 Waterproof Rating

3. Support:Siri or Andriod’s S-Voice function

4. Battery status shows on iPhone/iPod/iPad

5. NFC function,AUX IN function,TWS function

6. Hand free call function