Features:
[ CVC INTELLIGENT NOISE REDUCTION HIFI MUSIC SOUND ]: Built-in intelligent active noise reduction, hifi music sound, bring you amazing high definition music and call experience.
[ WIDE COMPATIBILITY FOR MOST BT DEVICES ]: Upgraded BT V5.0, both for android and iOS system phones, fast connection, higher transmission efficiency, lower power consumption and more stable.
[ EQUIPPED WITH LARGE CAPACITY PORTABLE CHARGING CASE ]: 1800mAh charging case, also can charge your phone in emergency, earbuds magnetically attracted in the charging case and fully charged in 1 hour.
[ ONE KEY SMART CONTROL]: One-click easy to answer calls, play music, pause, power on/off. Completely controlled by you.
[ BUILT-IN MICROPHONE FOR CALLS]: High definition, better connection and call quality.
[ ERGONOMICS DESIGNED SHAPE ]: Better suits your ear auricle, small and comfortable, not hurt your ear.

Specifications:
Active noise-cancellation: Yes;
Impedance: 16 ;
Sensitivity: 97dB;
Vocalism principle: Balanced Armature;
Frequency range: 2.402G-2.480G;
Volume control: No;
Waterproof: No;
BT version: V5.0;
BT protocol: A2DP/AVRCP/HFP/HSP;
Transmission distance: 10m;
Charging time: 1 hour;
Music time: 2 hours;
Standby time: 3 hours;
Talk time: 3 hours;
Battery capacity: Built-in 3.7V/50mAh Li-ion battery for each earbud, built-in 3.7V/1800mAh Li-ion battery for charging base(INCLUDED);
Ear bud weight: 9g / 0.32oz(single earbud);
Package weight: 246g / 8.68oz;
Charging base size: 8.5 5.5 2cm / 3.46 2.17 0.79in;
Package size: 16.5 10 4cm / 6.50 3.94 1.57in;

Package list:
2 Earbuds;
1 Charging case;
1 USB cable;
4 Ear caps;
1 User manual