1.5.0 Automatic power-on pairing: simplify the complexity, just the headset to pair with your mobile phone, no hassle in the 2. One-button touch farewell press: answer, hang up, play pause, power on and off, up and down , Siri voice phone operation, operation switch wake up3. Wireless without cumbersomeness: Equipped with a powerful 5.0 Bluetooth chip, CVC8.0 noise reduction is comparable to the sound effect of a thousand yuan headset function4. Pure presentation of the sound of nature: Let your ears enjoy the music with HF sound effects, movie calls and other content with layers5. One-button operation bid farewell to tediousness: a function such as turning on and off, easy to operate and listen to music festival calls are completely under your controlTransmission range: 10 metersBluetooth protocol: 5.0How to use: earplugsWhether single ear or double ear: bilateral stereoBattery life: 0-4 hours (hours)Waterproof performance: IPX3Colour:black+whiteMaterial:plasticSize:50 x 35 x 15mm Package Contents:2 x Earphones1 x Earphone charging compartment1 x English manual