Features:Low Energy Consumption: This wireless BT earphone is designed to consume less energy, making it more efficient and longer-lasting.Wireless Connectivity: With BT technology, you can enjoy a seamless and stable connection without the hassle of wires.Large Battery Capacity: The earphone comes with a 200mAh battery, while the earbud itself has a 35mAh battery, ensuring long hours of uninterrupted music or calls.Quick Charging: Despite the large battery capacity, the earphone charges quickly, reducing downtime and increasing convenience.Specifications:Model:JR03Color:Black/White(Optional)BT Version:V5.3Copper ring size:10mm diaphragm unitTransmission distance:≥10mCharging interface: Type-c fast chargingWearing style: not into the ear wearing typeCharging time: about 1-2hCharging compartment battery capacity: 200mAhEarphone capacity:35mAhPackage size:9*4.5*11cmPackage weight 78gPackage List:2 * Headphone1 * Charging Case