1. Bluetooth Version: V4.1 (CSR8645) Aptx
2. BT Profile:A2DP V1.3.AVRCP V1.5.HFP V1.6.HSP V1.2
3. Frequency range: 10-22 kHz
4. Maximum SPL:103dB
5. Wireless working distance: ≤ 10m
6. Rated Power Input：5mW 10mm Driver
7. Driver Sensitivity：96dB/1kHz
8. Music time: ≥ 8H,(3.7V,55mAh*2)
9. Standby time : ≥ 200Hours 10. supports voice call. Previous/next song, Last phone number redial, Caller phone number voice reporting function. Voice remind.Support navigation, voice chat APP.
Package information:
*carton size: cm
*gift box size:mm
Product weight: 0.02KG
Earbud Size:W20*H21.6*L36mm