Bluetooth 5.0 Full Wireless Technology with HiFi Sound Quality Equipped with the most modern Bluetooth 5.0, the transmission speed is twice as high as that of the 4.2 version. Experience simple, fast and non-disruptive transmissions. Install CVC 8.0 to reduce noise from the inside and outside. Comes with a built in microphone, completely wireless. Also it support Voice + and - Large Capacity Battery & IPX7 Fully Waterproof Comes with a 650mAh battery box which you can charge it for many times. Enjoy music in the park on the weekends and wherever you want. Because of the IPX7 waterproof your headphones are protected from sweat, water and, rain, etc. Play music during your workout. Note: The case is not waterproof. TWS Function and Easy OperationPick up 2 Headsets from Charging Box They will Connect Each Other Automatically, then Enter Pairing Mode with Mobile Phone Automatically. Lightweight and Comfortable Adapt to the design appearance of cochlea and provide three adjustable sizes (S, M, L) of silicone earplugs, which solve the problem of wearing pain and easy falling off of traditional earphones. Very light weight, only 7.5g per earbuds make your ears never hurted. Two use models Ear-hook or In-ear sports Bluetooth headset, never worry it dropping or lost when running. Specifications: Model: BE1032 Bluetooth version: 5.0+EDR Speaker impedance: 16Ω±15% Frequency response range: 20Hz-15KHz Speaker size: 6mm Bluetooth chip: AB1532 Transmission distance: 10 meters Headphone battery capacity: 50mAh Charging box battery capacity: 650mAh Battery size: headset battery: L*W*H: 58*10*13mm Charging box battery size: L*W*H: 80*20*40mm Headphone size: ear hook 50*40*25mm Headphone weight (single): 7.5g Charging box monomer size: 99*62*31mm Charging box weight: 61.5g Input: 5V 600mA Output: 5V 120mA Headphone full time: 1.5-2 hours Charging box full time: 2 hours Package Included: 2*headphone 1*charging compartment 1*charging cable 1*User Manual 3 pairs of ear caps