K2Smart Bracelet Bluetooth Wristband 2 In 1 Stereo Headphone Headset Sleep Monitor Smartwatch Band For IOS Android (Black) CHEMAI

Product details of K2Smart Bracelet Bluetooth Wristband 2 in 1 Stereo Headphone Headset Sleep Monitor Smartwatch Band For IOS AndroidScreen size 0.86 inchesScreen type OLED touchscreenScreen resolution 128 x 88 pixelsConnection parametersBluetooth support (BT3.0)Micro USB InterfaceSupport modes: Sports / sleep modeTransmission range: approximately 10mDual microphoneClimb the ladder to achieve recognition through the online upgradeCharging time 6 hoursBattery type Built-in 60mAh batteryWorking life: five days, call: 6 hours, standby: 6 days

a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a