harayaa Mini Electric Guitar Plug Headphone Amp Amplifier - USB

Specification: Material: acrylic Size:18.7 * 17.9 * 0.4cm / 7.4 * 7 * 0.2in Bright area size:19*15cm/7.5*5.9inch Package size:21.9 * 21.3 * 3.4cm / 8.6 * 8.4 * 1.3in Weight:225g / 7.9oz (approx.) Package List: 1 x LED Tracking Light Box 1 x USB Cable User Manual: 1. Remove the protective film from the front before use. 2. The interface of our products is very strong, please pay attention to the USB cable interface when using it. It is forbidden to distort the USB cable, otherwise it will cause damage, causing flash light on the board, poor contact with the sensor and product fading. If there is any problem, please replace the new Android USB cable. 3. If the powered backlight flashes, the input may not match the product under normal circumstances. You can solve the problem by changing the charger, charger or computer interface.