Brand Bollo Model BAR-III Qty 1 Color Black Material Aluminum alloy Interface Type 1 x RCA stereo 1 x Optical 1 x Coaxial Application Bluetooth audio wireless receiver Power Supply 2-Flat-Pin Plug (DC 12V / 1A) Other Features Frequency response: 20~20kHz; Noise: 92dB (A weighting); Distortion: 95dB; Audio Encryption Algorithm: 128 bits; Audio output level: 1.6V (Max); Temperature range: -40C~80c; Humidity range: 10%~90% non-condensing; Effective operation distance: 10 meters; Audio signal output: PCM Audio Digital Stream; Bluetooth protocol: OPP OBEX SPP A2DP AVRCP FTP HS/HF DUN Profiles; Maximum data transmission speed: Asynchronous: 723.2kbps/57.6kbps; Synchronous: 433.9kbps / 433.9kbps; Wireless Play Concept (Airplay) lossless audio and high fidelity sound; Allows you to get rid of the shackles of cable supports any mobile phone tablet PC laptop desktop etc. with Bluetooth function; Lossless Bluetooth audio transmission technology the audio signal is not compressed pure PCM data stream transmission sound beyond the ordinary Bluetooth chip solution; Superior user experience let the music flowing follow your fingertips; Especifically for 's Iphone Ipad iTouch; There is one set of analog stereo output interface outside; also has pure digital coaxial and optical audio signal output interface Packing List 1 x Bluetooth audio receiver 1 x 2-flat-pin plug power charger (100~260V / 90cm) 1 x RCA audio cable (150cm)