Tech data:
CSR8645 V4.1 APTX
Speaker diameler. 13mm
Connect 2 denices siulanously
Mireless working distance Max 10m
PayTalk time: 7 hours
Stand-by time. 150 hours
Charging bime: 2 hours
Bttery capacity. 280mAh rechargeable bltery
Sensivily 108db+t3db
Foqueny response: 204-2000H2
Product Weight 20g
sweat proof / microphone built in