HDMI and IR extender, with the option to link to other devices in cascade without the need for external hardware. Characteristics: - Resolutions up to 4K(2160p) - Audio formats: DTS/Dolby/LPCM - Maximum length: 120m - Power supply: 5V/1A - Maximum length of the HDMI cable: 15m with a 26 AWG cable - Dimensions(L x W x H) (per device): 94x84x24 mm - Weight (per device): 223g - Operating temperature: -15C to +55C Box contents: 2 x Transmitter/Receiver (both devices although marked with "transmitter" and "receiver" can be used interchangeably as transmitter or receiver). 2 x Power supply 5V/1A 2 x IR Receiver/Emitter per 3.5 stereo jack 1 x User Manual