Brand: XiaomiBluetooth version: V4.0 BLE (Chinese version), V4.2 BLE (International version)Waterproof Rating: IP67Color: BlackCompatibility: Android 4.4 + / iOS 7.0 +Language: English / ChineseTotal length: 235 mmAdjustable length: 155–210 mmProduct size (L x W x H): 40.3 x 15.7 x 10.5 mmProduct we..