Experience smooth, high-quality audio with the LENYES LH73 Wireless Headset. With Bluetooth version 5.0, enjoy seamless connectivity and longer battery life. Stay connected and hands-free with this stylish and efficient headset. Perfect for on-the-go use. Specifications Bluetooth version: 5.0. Loudspeaker diameter :40mm. Frequency response range:20 -18KHz. Communication distance:10M. Continuous working time: 4H. Charging time: 2.5 -3 H. Battery: 200mAh.