Product size: 7.3*4.4*2cm Rechargeable battery battery capacity 2500mAh Headphone battery capacity 50mAh Charging time 1 hour Play time 5 hours Frequency 2400-2480MHz Working distance 15 meters (barrier-free) Bluetooth version V5.0<img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/01ef18cd-bc2d-46ce-bd2a-ff80a4ff9f80.png" style="max-width:100%;"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/02a32d64-95f0-4818-96cf-ae51ec730331.png" style="font-size: 14px; max-width: 100%;"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/4783091d-3484-44f3-97c7-0b28e1478e3b.png" style="font-size: 14px; max-width: 100%;"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/2c3154c1-38d3-4d62-a0e0-3f800dd8d999.png" style="font-size: 14px; max-width: 100%;"><img src="https://cc-west-usa.oss-accelerate.aliyuncs.com/34f4cf6a-85e9-419f-a7ef-012458933a26.png" style="font-size: 14px; max-width: 100%;">

S9 touch bluetooth headset