Item model number: TW11 Use time: 3-4 hours Bluetooth solution: Jerry Cradle rechargeable battery: 400mAh . Battery capacity: 3.7V/45mAh Product color: black, white Charging time: 40-50 minutes Support Protocol: SBC/AAC/FHSS Size: Headphones: 1.8*4.6 cm, charging case: 3.2*5.5*6.3 cm. The LED power display of the charging box allows you to predict the battery life more intuitively. Take it out of the charging box, it can be automatically turned on and automatically connected and paired. Simple and easy, enjoy the music. 5.0 chip stereo surround sound, low power consumption and faster transmission. With a two-second touch, you can easily wake up the Siri voice assistant. The mainstream charging interface that can be plugged on both sides is safer and more convenient than the traditional charging interface, and the Type-C charging cable is randomly distributed. play music: Double-click the left ear to double-click the previous song, double-click the right ear to the next song, triple-click the left ear to decrease the volume, and triple-click the right ear to increase the volume.