Product: HIFIMAN Deva Over-Ear Full-Size Open-Back Planar Magnetic Headphone with Bluetooth Dongle/Receiver, Balanced Input, Easily Switch to Wireless, USB/Wireless/Wired
Brand: HIFIMAN
DEVA Headphone Specifications 
Frequency Response: 20-20kHz 
Impedance: 18Ω 
Sensitivity: 93.5dB 
Weight: 360g 
Socket: TRRS 3.5mm Bluemini Specifications: 
Frequency Response: 20Hz-20kHz 
AMP Output in fact 230mw 
AMP Output in theory: 1125mw 
TDH: <0.1%@1w/1kHz 
SNR:95dB 
Battery Life: 7-10Hours (Bluetooth) 
Weight: 25g 
Bluetooth Codecs: LDAC, aptX-HD, aptX, AAC, SBC 
Transmission: Bluetooth/USB Type C What’s included: 
Headphone x1 
Bluemini x1 
USB Charging Cable x1 
Headphone Cable 3.5mm x1 
3.5mm to 6.35mm Adapter x1 
User Manual x1 
Warranty Card x1
Bluetooth, USB, Wired- Your Choice ★Bluetooth: A variety of HD Bluetooth protocal-LDAC, aptX-HD, aptX, AAC fully HD compatible ★USB: USB DAC via USB-C cable: up to 24bit/192kHz ★Wired: Traditional wired 3.5mm Balanced input; Also support a standard 3.5mm single ended input
Bluemini-Small but Mighty: The DEVA companion Blueooth / USB module; Bluetooth receiver, DAC and Amp all in one. Bluemini’s built in power amp and buffer stage filter has power, dynamics and detail enough to rival a desktop amp. With built-in Microphone
HIFIMAN’s 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.

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