The pair of earphones are ergonomic half in-ear design, auto link, stereo sound, fingerprint touch control. And the charge box can display the electricity of earphones. The pair of headphones are suitable for sport running and travel.

Features:
Ergonomic half in-ear design, long time comfortable wear.
BT 5.1 chip, stable transmission, master and slave switch freely, almost no delay.
Built-in dual microphone each earphone can eliminate noise for high-definition communication.
Digital display of charge box shows the earphones power clearly.
20 hours long duration time matched with charge box, one play time is about 5 hours.
Easy to carry for outdoor travel, sport running and aircraft.

Specifications:
Material: ABS
Color: Black, White (optional)
BT Version: 5.1
Play Time: 5h
Standby Time: 220h
Support System: all BT-enabled devices and mobile phones
Cell:
Earphone: 50mAh
Charge Box: 1500mAh
Package Weight: 80g / 2.82ounces
Package Size: 172 * 75 * 35mm / 6.77 * 2.95 * 1.38in

Packing List:
2 * Earphones
1 * Charge Box
2 * Spare Pairs of Earphone Tips
1 * USB Cable
1 * User Guide