Improve your audio experience with LENYES AIR 70 ANC Noise Reduction Bluetooth 5.4. Enjoy crystal clear sound while the advanced Active Noise Cancellation technology eliminates external noise. With wireless Bluetooth 5.4 connectivity, you can enjoy seamless streaming and hands-free calls. LENYES Air 70 Wireless Earbuds ransmission distance: 15M [barrier free] Charging time: 1 hour Working time: Tested to play continuously at 100% volume for approximately 5.5 hours Noise reduction ANC with call noise reduction ENC Play Control Earphone volume adjustment, Noise reduction/transparency switching, Equalizer boundary settings, Alarm settings, Screen brightness setting, Switching between 16 languages, Lock screen wallpaper settings, Searching for L and R ears, Time setting, Tiktok likes it, Remote photo and video, LED lighting, interface 1-13 can slide in a loop