Features:1.Chip upgrade: upgrade 5.0 Bluetooth chip, automatically start and match.2. Operation function upgrade: touch switch to the previous/next song and volume adjustment.3. Large-capacity charging compartment: The charging compartment has a capacity of 500mah, which can be used as a headphone storage box.4. Enjoy & 9D heavy bass: Enjoy Hifi scenes and Enioy immersive 9D stereo surround sound effects.5. Intelligent noise reduction: intelligently reduce noise for calls, listen to songs, intelligently filter noise, and enjoy high-definition call effects without being affected by noisy environment.6. Strong compatibility: regardless of brand mobile phone and model, devices that support Bluetooth can use this headset.7. LED smart cold light digital display: real-time display of power.8. Using the Jerry 6963 solution, the headset is 40 mA, and the charging compartment is 500 mA with a protection board.9. There are Chinese and English manuals, English prompts, and the headset can be used alone.10. The headset is a touch version, the listening time is 4-5 hours, up and down, volume addition and subtraction, voice assistant.Specifications:Model: LB-8Transmission distance: 0-10mCharging compartment: 300MAHHeadphone: 40MAHCharging time: 1.5 hoursCharging cable: TYPE-CBluetooth version: version 5.0Frequency: 40Hz-20KHzImpedance: 32 ohmsSensitivity: 85dB/mWSpeaker size: 13mmWaterproof rating: IPX5Package inluded:2* Earphone,1* Charging case,1* Charging cable,1* Instruction