Product information:Material: ABSPower supply mode: dry battery (not included)Specification: 58 * 34 * 32mmModel: oximeterApplicable part: handColor: Bluetooth white, Bluetooth black, Bluetooth blue, non Bluetooth white, non Bluetooth black, non Bluetooth blueBlack, blue, white: non BluetoothBlack 1, blue 1, white 1: BluetoothPacking list:Manual * 1Certificate of conformity *1Rope *1Blood oxygen *2