Input: bluetooth-compatible, Coaxial, ToslinkOuput: R/L stereo, 3.5mm jack headphonebluetooth-compatible version: V5.0 bluetooth-compatible decoding mode: APT-X, AAC, SBCbluetooth-compatible protocol: A2DP V1.3.1, AVRCP V1.6 ,HFP V1.7, HSP V1.2bluetooth-compatible distance: >10MOptical/Coaxial input audio format: PCM / LPCMOptical/Coaxial input sampling rate: 32, 44.1, 48, 96 and 192KHzHeadphone amplifying power: 125mW x2 @ 32ΩSuggest headphone eesistance range: 16-300ΩTHD: 120DBOperating Temperature: 0℃ to 70℃Operating Humidity: 10% to 85% RH (no condensation)Storage Temperature: -10℃ to + 80℃Storage Humidity: 5%to 90% RH (no condensation)Power Requirements: External Power Supply Via USB cablePower Consumption: Max=5WDimensions (L*W*H): 85 x 100 x 28 mmNet weight: 119gAdopts bluetooth-compatible dedicated antenna for stable signal transmission.Supports one optical and one coaxial input interface.Supports one RCA and one 3.5mm audio output interface.Supports output volume adjustment.Ultraing low power consumption.Package：1 x 192kHz bluetooth-compatible DAC Converter1 x 1m Optical Cable1 x 1m Coaxial Cable1 x Power Adaptor1 x User Manual