Specification: _x005f_x000D_ Color: black, blue, orange, red (optional) _x005f_x000D_ Battery: 380mAh _x005f_x000D_ Usage time: approximately 10 hours _x005f_x000D_ Bluetooth-Compatible version: version 5.3 _x005f_x000D_ Bluetooth-Compatible chip: Jerry chip _x005f_x000D_ Frequency: 20Hz-20KHz _x005f_x000D_ Impedance: 32 Ω _x005f_x000D_ Sensitivity 85dB/mW _x005f_x000D_ Waterproof grade: IPX5 _x005f_x000D_ Speaker type: Bone conduction vibrator speaker _x005f_x000D_ Bluetooth-Compatible distance: approximately 10 meters _x005f_x000D_ Charging time: approximately 2.5 hours _x005f_x000D_ Bluetooth-Compatible protocol: A20P/AVRCP/HSP/HFP _x005f_x000D_ Packaging box size: 145 * 126 * 43mm/5.71 * 4.96 * 1.69in _x005f_x000D_ Complete set weight: 86g _x005f_x000D_ Earphone weight: 32g _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1 x Earphone _x005f_x000D_ 2 x Earplugs _x005f_x000D_ 1 x Charging cable _x005f_x000D_ 1 x Instruction manual 1. Bone Conduction Technology: Utilizes bone conduction sound transmission, delivering audio through face bones without the need for earplugs. It allows for long-lasting and comfortable listening experiences without causing discomfort or blocking the ears. 2. Sweat and Water Resistance: Designed to withstand sweat and rain, these headphones are perfect for intense workouts and outdoor activities, ensuring they won't be affected by unexpected moisture or heavy sweating. 3. Bluetooth-Compatible 5.3 Chip: Equipped with the latest Bluetooth-Compatible 5.3 chip, these headphones offer stable and fast transmission, enhanced anti-interference capabilities, and reliable connectivity even in crowded environments. 4. Multifunctional Button Design: Designed with a multifunctional button, these headphones allow for quick and convenient one-handed operation. Easily control your music playback, answer calls, adjust volume, and activate voice assistant functions with ease.