you more wearing stability and comfort while running, workout, or fitness. Painless hanging design, no need to put into your ear canal, you will not feel tired and pain. Press the button for 4 times to turn on the light on the earhook for safe night running.
Comfortable Fit:
They are IPX5 waterproof and sweatproof enough for most sports. The earhooks are rotatable and easy to accommodate different types of ears. The comfortable fit design makes headphones very secure for sport.
Portable Charging Case:
100mAh battery in each earbud ensures about 13 hours of working time and supports a total of 50 hours playback time when using with the included charging case. Playback time varies with connection conditions and conditions of use.
Fast Paring & Built-in Mic:
Auto power on and fast pairing between left and right earbuds once opening the charging case. Built-in HD microphone and ENC noise cancellation offer crystal clear conversation. Enjoy your music and call everywhere even in a loud environment.

Specification:
Model Number: F2
BT Version: 5.2
Support agreement: HSP, HFP, A2DP, ACRCP
BT Range: 10m (no obstacle)
Frequency Response Range: 20Hz-20KHz
Impedance: 32Ω
Sensitivity: 102dB
Charging Box Battery Capacity: 500mAh
Headphone Battery Capacity: 100mAh
Earbuds Charging Time: about 2 hours
Headphone Box Charging Time: about 1.5 hours
Working Time: about 13 hours (depends on music volume)
Standby Time: up to 90 days
Charging Port: Type-C
Material: ABS
Color: Black, White (Optional)
Headphone Weight: 16.2g/0.57oz (Each)
Case Weight: 72g/2.54oz
Package Size: 16.5*13.8*4.8cm/6.49*5.43*1.89in
Package Weight: 221g/7.79oz

Package List:
1 * Pair of Earphone
1 * Charging Box
1 * USB Charging Cable
1 * User Manual (English/Chinese)