Chipset JL Communication Wireless Function Microphone, APP Control, Power Bank, Wireless Charging, Built-in Cable, true wireless stereo, Waterproof, LED Display, Noise Cancelling Waterproof Standard IPX-6 Connectors TYPE-C Use Portable Media Player, Mobile Phone, Aviation, COMPUTER, Dj, Gaming, Sports, Audiophile, Travel, PROFESSIONAL, HEARING AID, For Internet Bar, For iPod, HiFi Headphone Control Button Yes Is wireless Yes Active Noise-Cancellation Yes Style In-ear Volume Control Yes Brand Name TIANPU Place of Origin Guangdong, China Wireless version V5.3 Distance 10m Frequency response 20Hz-20KHz Impedance 32 Ω Charging box 300mAh Earbuds battery 30mAh Charging time 1H Playing time 3-6H