Feature: 1. Over‑voltage protection can prevent the damage caused by connecting unmatched power adapter to the machine. 2. Three ways of optical fiber signals switch to one sets of SPDIF/ for TosLink signal receiving device. 3. Audio format support LPCM2.0/DTS/Dolby‑AC3. Support signal retiming. 4. Used optical fiber cable loss less the 0.2Db/m, Output distance is up to 40m / 131.2ft. 5. The input control can through R/M and also can directly press the button. Support last time working state memory when power off. 6. Support LED status indication. Reduce signal loss, get a better output signal. Specification: Item Type: 3x1 Switcher Material: Iron Shell Color: As shown in the picture Support Audio Format: LPCM2.0 / DTS / Dolby-AC3 Peak Wavelength: 650nm Maximum Baud Rate: 16Mbps Output Cable Distance: ≤40m / 131.2ft(use optical cable with less loss 0.2Db/m) Maximum Working Current: 100mA Power adapter format: Input: AC (50HZ, 60HZ) 100V-240V; Output: DC5V / 1000mA Operating Temperature Range: 0~+40℃ Operating Humidity Range.: 5~90%RH (non-condensing) Remote Control Battery: 1 x CR2025 battery(Included) . Package List: 1 x Remote Control1 x Instruction Manual1 x Fiber Optic Audio Cable1 x Power Adapter1 x 3x1 Switcher