Sennheiser HD 4.40 BT Wireless, new for 2017 bluetooth headphones.
HD4.40 BT are a full size, matte black over ear headphone with an ear opening just large enough to fit around ear while minimizing overall size and bulk. The earpads are very deep and plush, providing great comfort and excellent noise isolation - likely the best passive isolation we've experienced in a full sized headphone. Battery life is an excellent 25 hours!
Headband is thin with a rubber cushion. HD 4.40 BT folds up small, fit and finish is excellent and they really feel solid. Bluetooth sound is very good, better than we expected at this price, with a good balance of full bass and nice clarity. Compared with other bluetooth models, these can play LOUD also, so perfect for gym rats or with older recordings, or classical recordings that are recorded at very low levels.
There is a power button, control for play/pause/track and separate volume buttons. Carry bag included, audio cable, charging cable, 2 year warranty.
- Bluetooth: 4.0, apt-x
- Dual mics built in, for good call quality
- Frequency response: 18-22,000Hz
- THD: 0.5%
- Battery: Li-ion
- For wired use: 18 ohms, 113dB spl - easy to drive with phones/computers
- NFC for simple pairing with compatible phones