Features:
Built with BT5.0 version, it offers high data transfer speed, stable connection and low power consumption.
Built-in high sensitivity mic, it provides high-quality clear sound and great talking experience to you.
Multi-functional button control let you answer/reject calls, play/pause songs, simply by pressing the button all without taking your smart phones out of your pocket.
Easy and quick to pair with BT-enabled audio devices. Effective distance is about 10-15 meters in open space.
35mAh battery single ear earphone, ensures 3-4 hours of working time, and charged automatically in the 200mAh charging case.

Specifications:
Model Number: Y-19
BT Version: BT 5.0
Frequency Range: 20-20000Hz
Sensitivity: 42dB
Impedance: 32Ω
Transmission Distance: 10-15 meters (no obstacle)
Charging Case Capacity: 3.7V 200mAh
Earphone Battery Capacity: 3.7V 35mAh
Working Time: about 3-4 hours 
Charging Time: about 1-2 hours
Color: White
Earphone Size: 4*1.7cm/1.6 * 0.7in
Earphone Weight: 3g/0.1oz 
Charging Case Size: 5.5*3*1cm/2.2*1.2*0.4in
Charging Case Weight: 17g/0.6oz
Package Size: 9*7*3cm/3.5*2.8*1.2in
Package Weight: 31g/1.1oz

Package List:
1* Headphone
1* Charging Case
1* Charging Cable
1* User Manual (English / Chinese)