Bluetooth 4.0 and NFC Pairing
Intuitive Earcup-Mounted Controls
Dual Omnidirectional Microphones
Foldable Design for Travel and Storage
Built-In Rechargeable Battery

Headphone
Design	Over-Ear (Circumaural)

General
Frequency Response	18 Hz to 22 kHz
Impedance	18 Ohms
Maximum Sound Pressure Level (SPL)	113 dB at 1 kHz / 1 Vrms
Total Harmonic Distortion (THD)	0.5%

Microphone
Number of Mics	2
Pickup Pattern	Omni-Directional
Frequency Response	100 Hz to 10 kHz

Wireless Connectivity
Supported Audio Codecs	aptX
Bluetooth Version	4.0
NFC	Yes

Wired Connectivity
Audio Connector	1/8" / 3.5 mm Angled
Cable Length	4.6' / 1.4 m

Battery
Battery Chemistry	Lithium-Ion Polymer (LiPo)
Capacity (mAh)	600 mAh
Runtime	25 Hours
Recharge Time	2 Hours
DC Input Power	5 VDC at 400 mA

Physical
Weight	7.9 oz / 225 g

Packaging Info
Package Weight	1.15 lb
Box Dimensions (LxWxH)	9.1 x 7.2 x 4.0"

Box Contents

Sennheiser HD 4.40 BT Wireless Bluetooth Headphones

Carry Case
Audio Cable with 2.5mm and 3.5mm Jack Plug
USB Charging Cable with Micro-USB Connector

Warranty

Limited 2-Year Warranty

Sennheiser HD 4.40 BT Wireless Bluetooth Headphones

506782

You Pay: $99.95

Qty.

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Hollywood

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6614 Melrose Ave.
Hollywood, CA 90038
(323) 937-4600

Burbank

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2400 W. Olive Avenue
Burbank, CA 91506
(818) 840-8466

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Base Model

The HD 4.40 BT Wireless Bluetooth Headphones from Sennheiser feature high-quality sound and Bluetooth 4.0 technology in a sleek and foldable design. These headphones can be used to listen to music and answer calls, and are well suited for use with smartphones, MP3 players, tablets, and other portable devices.

The HD 4.40 BT are built to be portable and can make travel more pleasurable. With their over-ear design, and deep, ergonomically designed earpads, these headphones offer lasting comfort, even during extended listening sessions. Their robust, foldable-headband design can be easily and compactly stored in the supplied protective case.

Control at Your Fingertips: If you want to take or make a call, change a track, or adjust the volume, the intuitive earcup-mounted controls-along with the integrated microphones-allow for easy operation of the headphones.

High-Quality Sound with No Strings Attached: These wireless headphones are about freedom, musically and physically-thus, no cable. Instead, to appropriately complement the Sennheiser speakers, this headset comes with state-of-the-art wireless technology, aptX audio codec for reliable transmission and true wireless Hi-Fi sound, and provides immediate and simple pairing with compatible devices via Near Field Communication (NFC).

Comfort on Every Street: The headphones combine extended comfort and maximum portability with their over-ear, deep, ergonomically designed earpads. They allow you to enjoy extended listening sessions, and their robust, foldable-headband design enables them to be neatly stowed away in the included protective case.

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SKU 506782