Wireless Sports Headsets Wireless V4.1 Neckband Earphones HD Stereo Sweat-proof Headphones Earbuds Color:Blue Trigger distance: 2~3CM

Trigger distance: 2~3CM

which uses an LED time display function to visually check the time

It has Bluetooth 5

Note:Only supports 2

Wireless Sports Headsets Wireless V4.1 Neckband Earphones HD Stereo Sweat-proof Headphones Earbuds Color:Blue Trigger distance: 2~3CM*Specifications*: Wireless Version: CSRV4. 1 Transmitting Power: Class 2 Protocols Supported: HSP, HFP, A2DP, AVRCP Driver Unit: 10mm Impedance: 32ohm15% Talk Time: (LED Off): Up to 8 hours; (LED On): Up to 5 hours Play Time: (LED Off): Up to 6 hours; (LED On): Up to 4 hours Standby: (LED Off): Up to 90 hours; (LED On): Up to 13 hours Charge Time: = 3 hours Operation Range: =10M Battery: built in 120mAh lithium battery Weight: 0. 76oz Available