Sennheiser HD 400s BLUETOOTH_YES comes with a new smartphone

comes with a new smartphone app to optimize bass and 4 surround sound effects to feel more depth and clarity with an electro-bass booster that recreates the thumping beats in your favorite dance music

Compatibility: with 3

Sensitivity: 118±3dB

Behringer ULTRAGRAPH PRO FBQ3102HD High-Definition 31-Band Stereo Graphic Equalizer with FBQ Feedback Detection System

Sennheiser HD 400s BLUETOOTH_YES comes with a new smartphoneSennheiser HD 400s Wired Over The Ear Headphone with Built in Microphone & Remote for Office Calls and Music Control, Lightweight & Foldable Design, Renowned Sound Quality, Detachable Cable Frequency Response 20000 Hz Headphones Jack 3. 5 mm Jack Model Name HD 400s Connectivity Technology Wired Wireless Communication Technology Truly_Wireless Included Components HD 400S Around Ear Headphones, RCS 400 Detachable Single Sided Cable with 1 Button Remote