Color:Black Gardway 2018 Upgraded Version HWS-990 Neckband Wireless Headphones Truly Hi-Fi Sound The most advanced CSR8645 chip and CVC 6.0 noise reduction technology, transfers stereo Hi-Fi sound with super bass, middle and high pitch.Vibrating Alert & Hands Free Calling HWS-990 bluetooth headset can vibrate independently when a phone call comes and it allows auto switching between music and calls.Outstanding Battery Performance Stand-by time up to 350 hours, music time up to 14 hours and talking time up to 18 hours after a full 2-3 hours

The remaining battery life will be shown alongside the Bluetooth icon on Apple or Android device.IPX5 sweatproof IPX5 sweatproof sets free from worry of sweat damage while running, jogging, yoga in gym or biking running in drizzle raining days.HOW TO CONNECT TWO BLUETOOTH DEVICES SIMULTANEOUSLY: 1

Connect with the first bluetooth device ,then disconnect it

2

connect with the second device

3.At last, reconnect with the first one, and you will have them connected simultaneously.HOW TO SWITCH LANGUAGE(ENGLISH, KOREAN, CHINESE) Keep pressing pause button for 2 seconds before bluetooth pairing

Voice prompt will tell you  which language you are in.Specification: Bluetooth Chip: CSR8645+Aptx Bluetooth Version: 4.1 Working Distance: 33FT 2 Devices Simultaneous Connection: Yes Sweatproof: Yes Music/Talk Time: 14hrs Standby Time: 350hrs Compatibility with iPhone, iPad, Samsung and any bluetooth enabled devicePackage Included: 1 x DolTech Wireless Headphones 1 x USB Charging Cable 3 x Ear Tips (S/M/L) 1 x User Manual 1 x Service Card