40Hrs Music Time,Waterproof Wireless Neckband Bluetooth Headset,A21

Black

In the Ear

Yes

1 Bluetooth Headset, USB Charging Cable

Bluetooth

Behind the Neck

Yes

Yes

All Bluetooth Devices

Neckband

Frettie

Dual Dynamic

Short Press (+) to change to next song, Short Press (-) to change to previous song, Long Press (+) to Increase Volume, Long Press (-) to decrease Volume, Long Press power button to turn On/Off, Short Press power button to Receive / Disconnect calls, Double Press power button to redial

Yes

Yes

High Quality Sound

Bluetooth

20 m

Neckband

5.2

20 m

5 V

Lithium

40 hr

300 mAh

1 Hour

40 hr

300 hr

7 Days Replacement

7 Days Replacement