Hifiman Deva Open Back Hi-Fi Stereo Headphone with Bluemini Bluetooth

Bluemini-Small but Mighty. The DEVA companion Blueooth / USB module; Bluetooth receiver, DAC and Amp all in one. With built-in microphone. Blueminis built in power amp and buffer stage filter has power, dynamics and detail enough to rival a desktop amp. HIFIMANs NEO supernano Diaphragm (NsD). The new NsD is 80% thinner than previous designs, resulting in fast response and detailed image with lush, full range sonics. Total Channel Separation. Balanced channel input, TRRS 3.5mm headphone jack and socket; Offering 4 discrete pathways offering up to 20 dB higher power handling; Maximum Versatility: Bluetooth+USB+Cable Unique Configuration Unit. With the rich experience of developing world top-class headphones, HIFIMAN uses the unique configuration unit in Deva, promising the excellent sound quality. Headphone Specification. Frequency Response : 20 - 20kHz Impedance : 18 Sensitivity : 93.5dB Socket : TRRS 3.5mm Bluemini Specification. Frequency Response : 20 - 20kHz AMP Output in Fact : 230mW AMP Output in Theory : 1125mW TDH : lt;0.1% @1W / 1KHz SNR : 95dB Battery Life : 7 - 10 Hours Bluemini Weight : 25g Bluetooth Codecs : LDAC, aptx-HD, aptx, AAC, SBC Transmission : Bluetooth / USB Type C Packing List : - Hifiman Deva 1* - Bluemini 1* - USB Charging Cable 1* - Headphone Cable 3.5mm 1* - 3.5mm to 6.3mm Adapter 1* - User Manual 1* - Warranty Card 1*