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🎧 Elevate your sound game—where style meets unstoppable wireless freedom
The Sennheiser HD 4.40 BT are premium over-ear wireless headphones featuring Bluetooth 4.0 with aptX for high-fidelity sound, a 25-hour battery life, and foldable design for portability. Designed for professionals on the move, they combine robust build quality, integrated call and track controls, and comfortable ear pads to deliver rich, balanced audio and seamless connectivity throughout your busy day.
| ASIN | B01MSZSJE9 |
| Age Range Description | Adult |
| Antenna Location | Travel, Exercising, Music, Gaming |
| Audio Driver Type | Dynamic Driver |
| Battery Average Life | 25 Hours |
| Battery Charge Time | 25 Hours |
| Bluetooth Range | 10 Metres |
| Bluetooth Version | 4.0 |
| Box Contents | HD 4.40 BT Headset, carry pouch, charging cable, connecting cable, quick start guide |
| Brand Name | Sennheiser |
| Cable Features | Without Cable |
| Carrying Case Color | Black |
| Carrying Case Material | Polymer |
| Colour | Black |
| Compatible Devices | Phones, tablets, smart speakers |
| Control Method | Touch |
| Control Type | Intuitive ear cup mounted controls |
| Controller Type | Integrated Ear Cup Controls |
| Customer Package Type | soft/cushioned pouch |
| Customer Reviews | 4.5 4.5 out of 5 stars (9,090) |
| Earpiece Shape | around ear |
| Enclosure Material | Metal, Plastic |
| Frequency Range | 22000 Hz |
| Frequency Response | 22000 Hz |
| Global Trade Identification Number | 00615104266957, 04044155204711 |
| Headphone Form Factor | Around Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | Over Ear |
| Impedance | 18 Ohms |
| Is Autographed | No |
| Item Type Name | wireless closed back around ear |
| Item Weight | 450 Grams |
| Manufacturer | Sennheiser |
| Model Name | HD 4.40 BT Wireless |
| Model Number | HD 4.40 BT |
| Network Connectivity Technology | Bluetooth, wired cable included also |
| Noise Control | Sound Isolation |
| Number of Items | 4 |
| Product Features | Foldable, HiFi |
| Sensitivity | 113 dB |
| Series Number | 440 |
| Specific Uses For Product | Music, Travel |
| Style Name | Contemporary |
| Subject Character | no character |
| UPC | 615104266957 |
| Unit Count | 1.0 count |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology Type | Bluetooth |
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