With a lasting battery life, robust high quality develop and a compact foldable design for storage in the supplied protective case, the HD 4.40 BT is perfect companion for an active lifestyle on the relocation. With its around-ear design and deep, ergonomically created ear pads it offers convenience even during extended listening sessions. Its robust foldable headband design that can be quickly and compactly stored in the supplied protective case makes for perfect portability.
Type Ear coupling: Closed back, circumaural Primary application: Listening for pleasure Secondary application: Tracking, mixing Bluetooth: Yes Audio Frequency response (TX): 18Hz - 22kHz SPL: 113 dB
40 BT Wireless Bluetooth Headphones Sennheiser's HD 4
40BT headset introduces high-quality wireless sound for everyday listening on the move
The closed back, around ear headset is the perfect companion for cable-free listening with mobile devices, while Bluetooth 4
0 and aptX compatibility help deliver true Hi-Fi sound with a detailed acoustic performance