Compatible Audio & Video Equipment Style: Earphones & Headphones Compatible Audio & Video Equipment Style: Speakers Compatible Audio & Video Equipment Style: Amplifier Compatible Audio & Video Equipment Style: player Compatible Audio & Video Equipment Style: Digital-to-Analog Converter (DAC) Compatible Audio & Video Equipment Style: Audio Equipment Compatible Audio & Video Equipment Style: Stage Equipment Compatible Audio & Video Equipment Style: Recording Equipment Compatible Audio & Video Equipment Style: Display Equipment Type: Bluetooth Type: WIFI Type: IR Colour:blue Material: PVC Size:42 x 29 x 12mm Package Contents: 2 x sensor ranging module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.