The Cellecor wireless neckband offers a total playtime of up to 25 hours on a single charge and Charge for Only 10 minutes And Get a playtime of 2 hours. ; NK-3 Neckband built-in high sensitivity microphone and noise canceling technology, ensure crystal high quality sound no mater you are calling or listening to music. ; The wireless neckband has advanced Bluetooth V5.0, Which Makes an instant connection to your media hassle-free ; With flexible neckband and Magnetic earbuds, NK-3 Neckband is very comfortable to wear around your neck, and ensure a snug fit on your shoulders and superior shape retention. ; IPX3 Waterproof: A waterproof casing protects NK-3 neckband Bluetooth headphones against rain, water, sweat, splash and more. ;