Strong waterproof ability, IPX5 waterproof design, so that you don't have to worry about the influence of water in various scenarios such as sports, travel, outdoors, etc., allowing you to enjoy music more freely.The large black copper coil provides clearer, high-fidelity sound quality, allowing you to feel the purity and power of music, bringing you a more shocking listening experience.The low-latency design, with a delay of only 0.65 seconds, allows you to listen to music and play games without obvious audio and video out-of-sync, making it smoother and more natural.Long battery life, 24 hours of battery life, no need to worry about the problem of insufficient power, and it can ensure that you can continue to listen to music or talk in various scenarios.The CAC dual-microphone noise reduction design effectively reduces the interference of external noise, making your calls clearer without being affected by environmental noise. It also supports AAC audio decoding and Bluetooth 5.0 technology, allowing you to enjoy a more high-definition and stable audio transmission experience. . At the same time, there is a suspension engine design, which is more ergonomic and allows you to wear it for a long time without feeling uncomfortable.Precise method of operation:*Power on: Press and hold for 2 seconds, the blue light will flash once* Shutdown: Press and hold for 5 seconds, the red light will go out for 1 second* Answer: Short press for 1 second* Final replay: 4 clicks*Hang up: short press for 1 second*Voice dialing: Press and hold for 2 seconds* Long press to reject the call: long press for 2 seconds* Play/Pause: Short press for 1 second* Test mode: 5 clicks* Music next: 3 taps on right ear* Previous music: 3 songs in left ear*Volume+: 2 clicks on the right ear*Volume -: 2 affects the left earProduct parameters:* Model: BT-980* Size: 60*43*50mm (charging box), 30*24*36mm (earphone)* Bluetooth IC version: V5.2* Barrier-free connection distance: 10 meters* Playing music or talking time: about 7 hours* Standby time: about 280 hours* Battery capacity: 110MAH (headphone), 500MAH (charging box)* Charging time: about 1.5 hours* Frequency response range: 20Hz-20KHz* Applicable: playback devices that support Bluetoothfunction list:* Headphone charging: red is always on* Fully charged earphones: off when red light*Headphone low battery: flashing red light* Headphone charging: the blue light is always on*Low battery charging case: flashing blue light* Charging case charging: red light flashes* The charging box is fully charged: the red light is always onProduct List:1* Earphone, 1* Charging Box, 1* Charging Cable, 1* Product Manual