Specification: Item Type: BT Earbuds_x000D_Material: ABS_x000D_Function: Wireless Sound Transmission_x000D_Scope of Application: With BT Smart 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[Stable And Efficient Connection] BT earbuds are equipped with professional chipset and the latest BT 5.3 to ensure quality sound performance with fast, stable and efficient transmission. Achieve ultra fine resolution and detailed sound. 2[Large Range] Wireless BT earbuds with premium BT technology for accurate, distortion free connectivity at a range of 40 feet (15 meters). Ultra lightweight and comfortable to wear. Simply turn on your device's BT to automatically connect. 3[Noise Cancelling] Wireless earphones with CVC 8.0 noise cancellation technology for clear and deep resonant bass with a carefully tuned sound signature to deliver immersive sound. You'll be completely immersed in your own musical world. 4[HiFi Stereo] Wireless earbud headphones are driven by graphene speakers with a unique sound cavity to give you perfect and large HiFi stereo sound for a more lifelike music experience. Compatible with for Android phones, tablets, etc. 5[Clear Calls And IPX7 Waterproof] The earbuds have built in microphone so you can answer calls or redial your last call. ENC noise cancellation reduces ambient noise for clear calls. IPX7 waterproof withstands sweat for running or driving. PackageList: 1 x Pair of BTEarbuds 1 x Charging Compartment 1 x Charging Cable 4 x Eartips