Sennheiser’s HD 4.40BT Wireless headset offers great sound quality for every day listening on the move. Long-lasting battery life and a robust, foldable design, the closed back around ear headset is the perfect companion for your mobile devices - providing you with unrivalled listening pleasure and easy communication.
Impedance: 18 Ω
Frequency response (Microphone): 100 - 10,000 Hz
Frequency response: 18 - 22,000 Hz
Sound pressure level (SPL): 113dB (Passive: 1kHz/1Vrms)
THD, total harmonic distortion: <0.5% (1kHz/100dB)
Pick-up pattern: Dual omnidirectional microphones
Battery Specification: Li-ion Polymer Battery
Sennheiser is shaping the Future of Audio – a vision built on a 70-year history of innovation and a continued drive for excellence that is woven into our company’s DNA and culture. Around the world, our employees share this passion in the pursuit of the perfect sound, creating products that exceed expectations and set new benchmarks in audio.
The new Sennheiser HD 4.40BT Wireless offers exceptional sound for every day listening with mobile devices. The comfortable closed-back, around-ear headset is powered by proprietary Sennheiser drivers that deliver a well-balanced, amazingly detailed sound with dynamic bass. Bluetooth wireless technology ensures hassle-free pairing and reliable transmission with smart devices. Its elegantly minimalistic design with foldable headband has been crafted from robust, high-quality materials to meet the requirements of the street.
Signature Sennheiser Sound
Proprietary drivers used in the HD 4.40BT Wireless deliver detailed and well-balanced sound with satisfyingly dynamic bass. Listening sessions are pure joy – no matter the genre.
The HD 4.40BT Wireless is equipped with Bluetooth 4.0 featuring aptX codex compatibility providing wireless freedom of movement and exceptional sound quality.
Great Wearing Comfort
Soft leatherette covered ear pads provide exceptional wearing comfort for long listening sessions.
Instant Pairing via NFC
Hassle-free bluetooth connection is accomplished using Near Field Communication (NFC) with compatible smart devices.
Side-swiveling ear cups and a robust foldable headband design insures the HD 4.40BT Wireless can be easily and compactly stored in its supplied protective case.
Intuitive ear-cup mounted controls make adjusting volume, changing tracks and managing incoming calls via the integrated microphones a breeze.
|HD 4.40BT Wireless||HD 4.50BTNC Wireless||PXC 550|
|Wearing Style||Around Ear||Around Ear||Around Ear|
|Transducer Principle||Dynamic, Closed||Dynamic, Closed||Dynamic, Closed|
|Connectivity||Buetooth 4.0 / NFC Pairing||Buetooth 4.0 / NFC Pairing||Bluetooth 4.2, NFC, Cable with Remote|
|Frequency Response||18 – 22,000 Hz||18 – 22,000 Hz||17 – 23,000 Hz|
|Impedance||18 Ω||18 Ω||Active: 490 Ω / Passive: 46 Ω|
|Sound Pressure Level (SPL)||113 dB (Passive: 1 kHz /1 Vrms)||113 dB (Passive: 1 kHz / 1 Vrms)||110 dB (1 kHz / 1 Vrms)|
|Total Harmonic Distortion (THD)||<0.5% (1 kHz / 100 dB)||<0.5% (1 kHz / 100 dB)||<0.5% (1 kHz / 100 dB)|
|Battery Life||Up to 25 Hours||Up to 25 Hours||Up to 30 Hours|
|Weight (Headphones)||7.9 oz. (225 g)||8.4 oz. (238 g)||8 oz. (227g)|
|In the Box||HD 4.40BT Headset / 1.4 m Audio Cable / 3.5 mm Angled / Gold-plated Plug / USB Charging Cable||HD 4.50BTNC Wireless Headset / 1.4 m Audio Cable / 3.5 mm Angled Plug / USB Charging Cable / Carry Case||PXC 550 Wireless Headset / Cable with Remote / Carry Case / USB Cable / IFE Adapters / Manuals|
|Model||HD 4.40 BT|
|Item Weight||222 g|
|Product Dimensions||18 x 10 x 26 cm|
|Batteries:||1 CR2 batteries required.|
|Item model number||HD 4.40 BT|
|Additional Features||Wireless, Microphone-Feature|
|Included Components||Headphones, Carry Pouch, Charging Cable, Connecting Cable, Quick Start Guide|
|Number Of Items||1|
|Microphone Form Factor||With Microphone|
|Headphones Form Factor||With Microphone^Volume control|
|Battery Cell Composition||Lithium Ion|
|Device interface - primary||Buttons, Microphone|
|Contains Liquid Contents||No|
|Includes Rechargable Battery||Yes|
|Includes AC Adapter||No|
|Supports Bluetooth Technology||Yes|