Product Name: HiFi Amplifier with Blue Tooth Model NO.: PM5 Conductive Mode: A Element Number: Push-Pull Amplifier Voltage: AC 220V Output Number: 4 Sound Channel: 2.0 Function: Amplifier Combined Tube Type: Tube Amplifier Used For: Professional Usage: Hi-Fi, AV Tube Amplifier: 100wx2 Blue Tooth 4.0: NFC Trademark: ACIN Transport Package: Card Board Carton Specification: 100WX2 Origin: China HS Code: 85184000 Product Description Tube amplifier for HiFi book shelf speakers, it use 6N3 two pieces for Pre AMP, It produce 100WX2 output power RMS which will be suitable for all bookshelf speakers and most floor standing speakersIt with Aluminum front panel and with Volume, treble, bass control, and total 5 inputs..Tube: Beijing 6N3X2Blue tooth: CSR 4.0 with aptX function, NFC functionUSB : High spead 2.0 version, support MP3, WMA, WVA,AMR, FLAC,APE fortmat musicSpecificationRated Output Power:100W+100WS/N Ratio86dBFrequency response20Hz~20000HzPower consumption250WImpedance4~8 ohmsProduct Dimension (HXWXD)400x115X375MM