MP3 Player Card Headset - Wireless Digital Stereo Headphones Bluetooth Earphone
- Bluetooth Version: V5.0 Frequency: 2.40GHz-2.48GHz
- Power: ≤ 4 dBm, class 2
- Sensitivity: -84dBm / 0.1% BER
- Frequency response: 20 Hz - 20 KHz
- S/N rate: 70dB
- support: A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5
- Voltage: 3.7VDC (built-in 400MAH rechargeable battery)
- playing time: up to 20 hour
- standby time: 360hour
- charge time: 3-4 hour
- current: 40 mA
Thank you! ;]