Features:
BT 5.1 brings high data transfer speed, stable connection and low power consumption. Automatically pair after taken out from the charging case.
50mAh battery single ear earphone, and charged automatically in the 1200mAh charging case; LED power display can know the power status anytime. 
Designed with USB output port, the charging case can served as a power bank, convenient to charge your mobile phone at any time. 
Built-in high-definition microphone, intelligent noise reduction, delivers clearer and more real talking sound in stereo mode.
Multi-functional touch control, support switch songs, phone call, volume control and wake up voice assistant.

Specifications:
Model: F9-5 
BT Version: BT 5.1
Color: White/Pink/Black(Optional)
Transmission Distance: about 10 meters (no obstacle)
Charging Case Capacity: 3.7V 1200mAh
Earphone Battery Capacity: 3.7V 50mAh
Color: Black
Package Size: 14*10*4cm/5.5*3.9*1.6in
Package Weight: 100g/3.5oz

Package List:
2* Headphone
1* Charging Case
1* USB Charging Cable
1* User Manual (English)