Features: Convert input to sound output (SPDIF, 3.5mm). Input and output resolution: up to 4K30HZ. 2CH is 3.5mm or SPDIF stereo output; 5.1CH is the SPDIF output. Built in BLE5.0 receiver module, can pair with your smartphones, tablet, laptop or wireless loudspeaker. LED indicator: When connection, the blue indicator light remain on; When pairing, the blue indicator light flashes rapidly; When working, the blue indicator light flashes slowly. 2.0/5.1CH LED indicator: The blue light is not on. When in use, power supply is required; insert and use. Specifications: Material: ABS Color: Black Size: approx. 76x46x15.5mm/2.99x1.81x0.61inch Product Name: Sound Extraction and Separation Device Edition: 1.4b Output port: 1xSPDIF, 1x3.5mm Version: BLE5.0 Switching sound modes option: 2.0CH/5.1CH Video color format: 24/30/36 bit dark color Input and output resolution: 480p 576i 720p@50 / 60hz.1080i@50 /60hz, 1080p@24 /50/60hz.4K30HZ Working temperature: 0~55 Transmission distance: