[Comfortable to Wear]
The earbud head is 270-degree rotatable for both left and right ears wearing. Suitable for express delivery, fitness, driving, running, etc.
[Hands-free Call]
Built-in Microphone grasps the detail of voice, ideal for in-car calling or working use. CVC6.0 noise reduction filters outside noise to improve speech clarity. 
[Long Battery Time]
350mAh rechargeable battery lasts about 50 hours of working time and 120 hours of standby time on one full charge. Supports battery allowance digital display.
[Easy Operation]
Simple operation, easily controls playing/pausing, previous/next songs, answering/rejecting/ending an incoming-call.

Specifications:
Model Number: F19
BT Version: 5.2
Operation Range: Up to 8 meters (no obstacle)
Headset Battery: 350mAh rechargeable Lithium battery
Working Time: about 50 hours (depends on volume)
Standby Time: about 120 hours
Charging Time: about 2 hours
Charge Port: Type-C
Charging Voltage: DC 5V
Color: Black, Blue, White (Optional)
Main Item Size: 8.0*5.0*0.8cm/3.15*1.96*0.31in
Main Item Weight: 13g/0.45oz
Package Size: 13.3*8.0*2.5cm/5.23*3.15*0.98in
Package Weight: 41g/1.44oz

Package List:
1 * BT Headset    
1 * USB Cable
1 * User Manual (EN/CN)