1, Standard Bluetooth 5.0 interface 2, Working Distance within 10 meters 3, Modulation Method: GFSK 4, working voltage: 3.0-4.2V 5, working current: <2.5mA 6, standby current: <0.3mA 7, sleep current: <40uA 8, charging current: >200mA 9, standby time: >100 days 10, charging time: 3-4 hours 11, lithium battery capacity: 250mAh 12, sustainable working hours: >30hours 13, battery life: 3 years 14, button force: 80 ? 10g 15, button life: 5 million hits 16, working temperature: -10 – +55 degrees 17, charging method: TYPE-C