Specification: Item Type: Bluetooth Earbuds_x000D_Material: ABS_x000D_Function: Wireless Sound Transmission_x000D_Scope of Application: with Bluetooth Only Sound Devices_x000D_Headset Charging: About 1H_x000D_Standby Time: About 80 Hours_x000D_Talk Time: About 3 Hours_x000D_Headset Built in Battery: Lithium Battery 33mAh x 2 _x000D_Built in Battery of the Charging Compartment: Lithium Battery 200mAh _x000D_Charging Voltage: DC 5V_x000D_Bluetooth Version: V5.1_x000D_Protocol Support: A2DP HFP HSP AVVRCP Features: 1Bluetooth 5.0: The wireless bluetooth headset uses a professional chipset and is equipped with the latest Bluetooth 5.0 for fast, stable and efficient transmission. Super fine resolution rendering reveals details that are not possible with ordinary headphones. 2Automatic Connection: Bluetooth headphones use leading Bluetooth technology to maintain accurate, distortion free connections within 40 feet (15 meters) with smartphones and tablets, such as cell phones, for IOS, for Android, and more. It will connect automatically. 3CVC 8.0 Noise Reduction Technology, Built in Mic: The wireless bluetooth headset features CVC 8.0 noise reduction technology for clear sound. Use the built in microphone to answer a call or redial the last call. 4IPX7 Waterproof Design: The wireless bluetooth headset is designed with IPX7 waterproof to withstand sweaty workouts in the gym. Can be used for training, driving, home, office, etc. 5Deep Bass, HiFi Stereo Sound: The bluetooth headset is powered by graphene speakers with a unique sound chamber design for perfect and superior stereo sound. With crystal clear and deep resonant bass, carefully tuned sound signal. PackageList: 2 x Bluetooth Earbuds 1 x Charging Compartment 1 x Charging Cable 4 x Ear Covers