General description Remote Control for 535 525 Cm520 TV Audio is a high-quality replacement remote made of durable ABS material. It is designed for ease of use, providing full access to all buttons without the need for programming. Simply insert batteries, and it is ready to operate. Technical specifications Material: ABS Color: Black Measurement allowed error: +/- 1-3 cm Usage To control your audio equipment, follow these steps: Switch to aux2 mode first. Hold the aux2 mode for a long time until the green light is always on. Enter the code 3111, press the Vol + key once, then the guide button, and finally exit to complete the setting. Aux2 mode can operate audio equipment. Other information Package Contents: 1 x Remote Control (AAA Batteries not included) Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.