G35 Bluetooth Headset 5.2 In-ear Digital Binaural Call Stereo -Waterproof LED DisplayFeatures: Bluetooth V5.2, compatible with most Bluetooth devices and low energy consumption Subversive upgrade transparent aesthetics. True wireless large screen LED display cool lamp with fingerprint Break through the traditional connection between the main engine and the auxiliary engine, dual main engines and dual channels, left / right / two ears, and use at will HIFI sound quality, realistic telepresence, shocking stereo Cvc8.0 intelligent noise reduction is used to make calls and listen to songs. Intelligent noise filtering makes calls as clear as interviewsProduct Description:Bluetooth version: V5.2 + EDRWireless frequency: 2.4GHzSupporting protocol: A2DPAVRCPHSPHFPTransmission distance: 10MBattery capacity: 55mah+300mahCharging voltage / current: 5V / 1ACharging time: about 1 hourStandby time: 120 hoursWorking temperature: - 10-50Package Includes1 x Bluetooth headset1 x USB cable.1 x User manual1 x Charging bin4 x earmuffs