Neck Type Bluetooth 5.3 Headset High Capacity Intelligent Digital Display Stereo Delay Sports Bluetooth Headset Features: Advanced Bluetooth transmission technology, stable connection with transmission distance of 15m, no delay and continuous connection components, faster response, , plus frequency tuning to music High frequency bright, medium frequency full, low frequency vigorous and elastic Active noise reduction+passive noise reduction approach noise reduction system noise reduction by reverse neutralization and cancellation, and noisy street stations, etc., with quiet voice Low power Bluetooth solution, together with high-performance battery, brings a long experience. From the morning to the evening, you can hear music without interruption Use your mouth to complete various mobile phone operations, talk with your about the weather, ask the navigation, make a phone call... in sentence. Product Description: Bluetooth version: bluetoothv5.3 Frequency range: 50hz-5khz Working distance: straight line > 15m Bluetooth antenna mode: PCB antenna Battery type: lithium battery / 400mah Standby time: about 300 h Talk time: about 10 hours Playback time: about 120 hours Charging time: about 1.5 hour Package includes: 1 x A pair of headphones 1 x data cable 1 x Instructio