Genernal Feature: pick up a call, end a call,reject a call,call redial mute, volume adjustment, voice dial.

 Multi pairing,support to connect 2 cellphones.

Talk time: Up to 4 hours,Standby time: Up to 120 hours.

Dimension:(L x W x H): 40 x 18 x 9mm,Weight: about 9 grams.

Talk time: up to 8 hours

Standby time:up to 250 hours.

bluetooth earphone