★ Body size: 36 * 1.3 * 6cm ★ Body weight: Approximately 27g ★ Power supply: Built-in lithium rechargeable battery 180mAh ★ Charging time: Approximately 2-3 hours ★ Duration: Approximately 5 hours ★ Standby time: Approximately 300 hours #☆SMILE·͜·Shop☆ Click here for a list of products ✨☜ ✨Free shipping & anonymous delivery✨ ----------------------------------------------- 【Product Description】 Set contents: Main unit, charging cable Body size: 36 * 1.3 * 6cm Body weight: Approximately 27g Material: ABS etc. Power supply: Built-in lithium rechargeable battery 180mAh Charging time: Approximately 2-3 hours Duration: Approximately 5 hours Standby time: Approximately 300 hours Kiyora-ka Lightweight and stylish "bone conduction earphones" for men and women, easy operation KD-E01 Black, with charger, Black (4-31)2783