1. Transmission range: 20 meters2. Channel: stereo3. Single or double ear: bilateral stereo4. Function: support bluetooth, waterproof, noise reduction, voice5. IPX6 deep waterproof, no fear of dust and rain, ensure worry-free journey, tight and stable structure6. Bluetooth chip 5.3, low power consumption, stable connection, low latency, better sound quality, more stable signal7. LED lighting, double-click the voice assistant button to turn on the light, simple and easy to use, easy to cope with dim and complex environments8. Short press the voice button to wake up the AI voice assistant9. 30 hours of long-lasting battery life, 1000mAh large capacity, AI power management chip, strong battery life for a whole day10. High-end composite diaphragm, restore the essence of music to the greatest extent11. Automatically answer the incoming call after the voice broadcast of the phone number, no manual operation is required, safer12. Adopting mobile phone silicone microphone, CVC and DSP dual intelligent noise reduction, filtering noise effectively reduces decibels and improves call quality13. Can connect two mobile phones at the same time, freely choose a device to switch to listen to music, navigation, and answer callsPacking list:- K23 host x 1- Speaker microphone x 1- Clip base x 1- Installation sticker x 1- Type-C charging cable x 1- User manual x 1