Three-band equalization can be adjusted independently of 's high, medium and low tones, and the music can be adjusted to each . 4 connection modes, compatible with a wide range of devices such as cell phones, computers, laptops, consoles, TV set-top boxes, tablets, stereos and headphones. Bluetooth wireless connection, support with Bluetooth cell phone / PAD / laptop, etc. Through the audio converter, TV fiber optic cable and 3.5mm / audio interface audio connection, creating a home theater, watching and catching up with the drama more drama sense of presence Webcast tuning; HIFI sound quality | real-time monitoring | free adjustment Color: black Material: plastic + metal Power: DC 5V Input: Type-c (computer, cell phone) / 3.5 stereo / optical / coaxial / Bluetooth left and right channels Output: Type-c (computer, cell phone) / 3.5mm stereo / headphones Specification: 198X103X33mm Plug Type :EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage: AC100-240V Package Contents: 1 x Audio converter 1 x adapter 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.