Item Type: Bluetooth EarphoneMaterial: ABSModel: CV-18Bluetooth: 5.0Talk Time: 5 HoursMusic Duration: 5 HoursCharging Time: 1-2 HoursRechargeable Battery: 300mAh Lithium Battery (Delivered with Battery)Headphone Battery: 50mAh Lithium Battery (Delivered with Battery)Transmission Distance: Approx. 10m / 32.8ftWireless Protocol: HFP/A2DP/AVRCPSensitivity: 92dBWaterproof Rating: IPX4Package List2 x Headphone1 x Charging Compartment1 x Charging Cable1True wireless headphones use HiFi chips to provide you with high definition sound quality. Whether it is folk songs, rock or electronic music, it can bring you an immersive music experience. 2It is ergonomically designed and can adapt to different ear shapes. It is comfortable and unburdened for long term wear. It can be worn stably during work, jogging, hiking, exercise, etc. 3Easy to use. After pairing the mobile device for the first time, it will be automatically paired thereafter, and supports a stable connection up to about 10m / 32.8ft, without the need to carry a music player. 4This wireless earphone has IPX4 anti sweat, so you dont have to worry about sweat damaging the earphones when you are exercising, so you can enjoy music while exercising. 5The iconic noise suppression microphone with intelligent noise reduction technology helps prevent steady state noise such as fans and vacuum cleaners, ensuring that you can make a clear call in a noisy environment.