BYZ CSR V4.1 Sweat-proof Bluetooth Neck Band Sports Earphones with Magnetic Absorb
1. Bluetooth Version: V4.1, class II
2. Chipset: JR
3. Frenquency Range: 2.402GHz-2.480GHz.
4. Working Time: about 5H
5. Bluetooth Profile: A2DP, AVRCP,HSP,HFP
6. Can connect with 2 enable Bluetooth devices at the same time
7. Charging Power: DC5V ≥200mA
8. CODEC: AAC, SBC
9. Battery Type: 75mAH rechargeable lithium polymer battery
10. Operating Temperature: -10-55°C
11. Storage Temperature: -20~65℃
12. Speaker size: 8mm
13. Magnetic absorb
14. Calling Vibration