HOCO Mini In-ear Music Earphone Bluetooth – V4.1 Business Being Elegant Sweatproof Wireless Earbuds
1. Bluetooth specification: bluetooth V4.1 ; Support protocol HeadsetHands-freeA2DPAvrcp;2.
Transmission scope: 10m, Transmission frequency: 2.4GHz ;3. charging voltage:DC 5V,
Charging time about 1.5 hours;4. capacity: 30mAH, size: 23*19*10mm;5. talk time: over 3.5 hours; music time: over 3.5 hours; standby time: over 55 hours, weight: 4g;6.