Fangrui Product Details Features: 1. Bluetooth: V5.0 2. Built In Polymer Lithium Battery 3.7v 3. Battery: 1000mah Lithium Battery 4. Transmission Distance: 1000 Light Effects: 16 Rgb Dazzling Light Effects Modes Standby Time: 300 Hours 40mm Diameter High-quality Speaker Call Time: 25 Hours Light Effect Mode 10 Ai Voice Assistant: Support Waterproof Level: Ipx6 Split Installation (the Back Clip Can Be Separated From The Main Unit) Atmosphere Light: Supports Turning On And Off Supports Connecting Two Phones Simultaneously Default Chinese And English For Startup Voice Incoming Call Voice Color: Black Material: Abs Package Contents: 1 X Earphone 1 X Mounting Accessories 1 X Microphone 1 X Charging Cable 1 X English Manual Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.