Specification: Item Type: BT Earbuds_x000D_Material: ABS_x000D_Function: Wireless Sound Transmission_x000D_Scope of Application: With BT Only Sound Devices_x000D_Earbuds Charging: About 1H_x000D_Standby Time: About 80 Hours_x000D_Talk Time: About 3 Hours_x000D_Earbuds Built in Battery: 2 x Lithium Battery 30mAH_x000D_Charging Compartment Built in Battery: Lithium Battery 200mAH _x000D_Charging Voltage: DC5V_x000D_BT Version: V5.3_x000D_Protocol Support: A2DP, HFP, HSP, AVVRCP Features: 1[Fast And Stable] BT earbuds with professional chipset, equipped with BT 5.3 for fast, stable and efficient transmission. Sound is presented in ultra fine resolution for more detail. 2[Large Connection Range] The wireless earbuds use premium BT technology to maintain an accurate, distortion free connection at a range of 40 feet (15 meters). Ultra lightweight and comfortable to wear. 3[Device Compatible] The headphones connect instantly to for Android smartphones and tablets, etc, simply turn on your BT device and automatically connect to the headphones. 4[Noise Cancelling] BT earphone with ENC noise cancellation for clear calls. Deep bass and a carefully tuned sound signal provide immersive sound. Fully immerse yourself in your music. 5[Stereo Sound] Wireless earbud headsets are driven by graphene speakers with a unique sound cavity design to give you perfect and large stereo sound for a more lifelike music experience. PackageList: 2 xBTEarbuds 1 x Charging Compartment 1 x Charging Cable