With Bluetooth 5.0 technology, fast pairing and stable performance, you can enjoy wireless music listening and HD phone calling voiceNo need to jam the earphones into the ear, so as to better protect the hearing. Unlike in-ear headphones, it allows you to keep in touch and understand the surrounding environment to ensure safetyLightweight design for comfortable wearing, help to experience unparalleled comfortWaterproof design, no fear of sweat, great for running, hiking, cycling, car driving, business occasion, etc, enjoy superb sound quality instantlyLong standby time, continuous talk time of up to 10 hoursThe headset can be connected to two phones at the same timeSoft silicone material is flexible and easy to foldSupport intelligent voice prompt in English and Chinese (default is English)Universal support for all Bluetooth-enabled smartphones Specification: Model number: Hi70Bluetooth version: V5.0Bluetooth protocol: A2DP, AVRCP, HFP, HSPBluetooth wireless distance: 10mTransmission frequency: 10Hz-20kHzContinuous call time: about 10 hoursMusic time: about 10 hoursStandby time: about 140 hoursCharging time: about 2 hoursBattery capacity: 140mAhCharging port: Type-C Package included: 1 x Headphone 1 x Charging Cable 1 x English and Chinese User Manual Other things not included