Usage Tips:This hdmi audio converter can extract the audio signal embedded in HDMI sources and convert it to 3.5 mm analog audio output and SPDIF output at the same time. The SPDIF out supports both 2 CH audio and 5.1 CH audio including Dolby Digital 5.1 CH and DTS 5.1 CH. The HDMI out supports 7.1 CH audio including Dolby Digital 7.1 CH and DTS 7.1 CH. Ultra long distance transmission up to 40 meters (input + output), no signal loss. 99% do not need external power supply, plug and play, more convenient, more environmentally friendly. Input ports: 1 x HDMI, 1 x Micro-USB power port, 3 x EDID Audio (pass, 2 CH, 5.1 CH) Output ports: 1 x HDMI, 1 x SPDIF (optical), 1 x 3.5 mm jack. HDMI resolutions: 4K x 2K, 24/50/60/1080P/1080i/720p/576p/576i/480p/480i Supported color formats: 24 bit/deep color 30 bit, 36 bit Max bandwidth: 225 MHz Max baud rate: 6.75 Gbps Max working current: 190 mA Audio and video can be converted from the HDMI output Pass: support 7.1 channel output, device read the HDMI OUT audio signal directly 2CH: 2.1 stereo channel output 5.1CH: optical fiber 5.1 digital surround audio (DTS, Dolby, AC3) and other outputs;Support 24bit / 192Khz audio sampling rate Name: audio extractor Outputs: RCA Outputs: 3.5 mm PCM Word Length: 16-bit Inputs: HDMI Inputs: USB Type-B PCM Word Length: 24-bit Model Number: HD360 Input Format: DTS/AC3/5./7.1 D/A Converter: EP colour:Black Material:metal size:51 x 56 x 22mm Package Contents: 1 x audio converter 1 x Optical audio Cable 1 x 3.5mm to RAC audio Cable 1 x micro-USB cable Only the above package content, other products are not included. Note: Light shooting 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.