Описание Описание 1. Bluetooth specification Bluetooth V4.2 WT support protocol Headset Hands-free A2DP Avrcp 2. Transmission range 10 meters Transmission frequency 2.4GHz 3. Charging voltage DC5V charging time is about 2 hours 4. Battery capacity: 50mAH; Product size: L50 × W12 × H20mm 5. Talk time 3 hours 3 hours music time; standby time 90 hours; Product net weight: 7g 6. Battery display