Feature:1. BT DESIGN: Cordless earbuds use BT technology, you can connect the earbuds via BT to use, automatic connection, easy to use.2. NOISE REDUCTION: Noise reduction earbuds use intelligent noise reduction technology, the sound is clear and stereo.3. ERGONOMIC DESIGN: Waterproof earbuds use ergonomic from design, comfortable to wear, lightweight design does not increase the burden on the ear.4. WATERPROOF DESIGN: BT earbuds use waterproof design, with sweat and rainfall resistance, you can use it when you play outdoor sports.5. DIGITAL DISPLAY: Earbuds use digital display power design, you can clearly and easily watch the remaining power, to avoid the situation of earbuds out of power.Specification:Item Type: BT EarbudsMaterial: ABSStandby Time: 120 HoursWorking Time: 4 Hours, Charging Case Can Be Charged 2 Times to The EarbudsCharging Time: 1 HourCharging Case Interface: Type C Charging PortEarbuds Battery Capacity: 40MAH (Pure Cobalt Battery)Charging Case Battery Capacity: 250MAHVoltage: 3.24.2VFrequency: 20Hz to 20KHz.Package List:1 Pair x BT Earbuds1 x Earbuds Charging Case1 x Type C Charging Cable1 x Chinese and English Manual