Model Number: Baseus D02 Pro Earphones type: Earphone Materials: ABS Mainly Compatible with: All Devices Suporting Bluetooth Functions: Song switch Bluetooth Version: V5.3 Transmission range: 10 meters ● 40MM diaphragm, strong heavy bass. New 5.0 Bluettoth, 10 m stable link, high-efficiency games continue to continue; protein starting earmuffs, long wear comfortable; low power consumption, last 50 hours continuous output; control panel, operation Be all between fingers; ● Power on the pair, memory quick connection; folding design; sound insulation noise reduction; one machine dual use, call / entertainment two incorrect; ● Powerful compatibility: support Apple, Android, Windows system mobile phones, tablets, notebooks, etc. Bluetooth functional electronic devices.