Clear call quality in any condition: intelligent noise reduction with an ultrasensitivity silicone microphone and a windproof microphone cover to minimize wind and ambient noise during calls. Hands phone functionality: supports basic mobile phone use (receive calls, play music); auto answer mode; press the button to reject or hang up, and redial the last number. Longlasting and practical power: rechargeable lithium polymer battery, 350 mAh capacity; talk time up to 250 hours and standby time up to 240 hours. Rugged and reliable for outdoors: IP67 waterproof rating, able to handle snow and wet environments without performance loss. Advanced connectivity for quality audio: Bluetooth 5.0 chip for energy efficiency, low latency, minimal noise, and audio transmission. Key specifications: 350 mAh lithium polymer battery; Bluetooth 5.0; IP67 waterproof; builtin intelligent noise reduction and windproof mic for enhanced call clarity. Practical use scenarios: In the car or on the go: use for hands calls and listening to music while staying focused on the road. Outdoor activities in adverse weather: snow, rain, or dust are no hindrance thanks to IP67 protection. Home or office use: enjoy long standby and easy onebutton control for calls and music without pulling out your phone.