This item is without retail box. This Digital to Analog Audio Converter is designed for either home or professional audio switching. It converts coaxial or toslink digital audio signals to analog L/R audio and connects to an external device such as an amplifier via standard RCA jacks.Features:Converts coaxial or toslink digital audio signals to analog L/R audio and connects to an external device such as an amplifier via standard RCA jacks.Supports uncompressed 2-channel LPCM digital audio signal output.Supports sampling rate at 32, 44.1, 48, and 96KHz.24-bit S/PDIF incoming bit stream on left and right channels.Provides electromagnetic-noise-free transmission.Easy to install and simple to operate.Compact size.Specifications: Input Audio: Coaxial or Toslink digital audio Output Audio: L/R audio Input audio connector: 1 x Toslink, 1 x RCA (Coaxial)Output audio connector: 2 x RCA(R/L)Power input: AC 100-240V 50/60HzOutput: DC 5V 2APlug standard: US plug Product size: 51x41x26mm (L-W-H)Product weight: 68gPackage size: 120x100x60mmPackage weight: 207g Item Includes: 1 x Digital to Analog Audio Converter1 x Power Supply1 x English User Manual