Features: Bluetooth-compatible 5.2 chip brings stable transmission, which have strong ability of antiinterference. You will feel comfortable to wear the earphone with ergonomic design. Selected from ABS and electronic component. These headphones boast IPX5 waterproof rating, which mean they resistant to sustain moisture. Deliver clear midrange frequencies, perfect for music and conversation. Specifications: Component:ABS Color:Black/Pinks/Blue/Redness Bluetooth-compatible version: 5.2 Waterproof performances: IPX5 Frequency response ranges: 20Hz-20KHz. Horn impedance: 32ohm Battery capacity: 280mAh Continuous playback time: 8hours Charging time: 2hours Length:Approx.70cm/27.56inches Note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item. Package includes: 1 Set Neckband Headphone