Package List: 1 x Audio Converter 1 x Optical Fiber Cable 1 x USB Power Cable 1 x Remote Control 1 x User Manual Audio format PCM/LPCM Audio sampling rate 32~192K RCA output highest level 1.2Vrms 3.5mm audio port output maximum level 2Vrms 3.5mm audio port output maximum power 30mW Maximum working voltage/current 5V/50mA Working environment temperature -10~+55 Storage ambient temperature -26~+60 Working environment humidity 10~90%RH (non-condensing) Storage environment humidity 5~95%RH (non-condensing) Housing dimensions 102.5x69.5x 23 mm Weight 140 grams Housing Material Plastic Colour: Black It supports a fiber and a coaxial interface input, and supports 2RCA and a 3.5mm audio port output. Built-in high-performance DAC chip, supports up to 192K/24bit sampling rate. It supports signal input switching, output volume control and infrared remote control. Equipped with remote control, flexible control input channel, volume, mute, switch and so on. Suitable for home theater, teaching, training structure, meeting room, home appliance store and so on.