Features: 
Compact and light-weight design. 
Double-ear main and subsidiary earpiece design, innovative and excellence. 
Bluetooth 4.2 technology, better sound quality. 
Adopt True Wireless Technology, enjoy your wirelessly sports . 
Intelligent charging box provides fast charge, worry free for endurance. With high capacity lithium battery and low frequency balanced technology function. 
Multi-functional button, achieved by one click. Strong compatibility, compatible with devices as long as they are Bluetooth enables. 
Three steps to pair, easy to use. 
Specifications: 
Type: Bluetooth Headset 
Model: TWS 
Color: white 
Bluetooth version: V4.2 
Drive: 8mm 
Impedance: 16ohms 
Power level: Class ? 
Working voltage: 3.2V-4.2V 
Sensitivity: -42db±2db 
Frequency range: 2.4-2.48Ghz 
Distance: <10m 
Profiles: A2DP/AVRCP 
Compatibility: for devices which bluetooth enables 
Package size: Approx.9 * 7.5 * 7.5cm / 3.5 * 3 * 3in 
Package weight: Approx.155g / 5.5oz 
Package list: 
2 * Headset (main and subsidiary) 
1 * Charge box 
1 * USB cable 
2 * Earbud 
1 * Carry bag 
1 * User manual (English)