Brand ‎HOCO Style In-ear Colors: White Product name: EW02 Plus True wireless BT headset Active Noise-Cancellation: Yes Waterproof Standard: ‎IPX-5 Bluetooth Standard: Wireless v5.1, chip: Jerry AC6973 Charging time: 1 hour Call/music time: 4 Hours, 200 hours standby Operating Distance: 10m Features: ‎Support master-slave switching/ call Siri, modify pairing name,/touch operation, do not support pop-up window Function: Waterproof, Noise Cancelling, Microphone Battery capacity: ‎charging case 350mAh, left and right headset 30mAh