Sennheiser HD 450BT Specs
Key Specs
| Earpiece Connection / Wearing Style | Headband |
| Foldable | Yes |
| Active Noise Cancellation | Yes |
| Sensors | Touch |
| Frequency Response | 18 Hz to 22,000 Hz (Wireless) |
| Number of Voice Mics | 2 |
| Beamforming Support | Yes |
| Runtime | 30 Hours (BT+ANC) |
Headphone
| Open/Closed-Back | Closed-Back |
| Earpiece Connection / Wearing Style | Headband |
| Foldable | Yes |
| Driver Type | Dynamic |
| Active Noise Cancellation | Yes |
| Controls/Microphone Location | Controls: Earpiece (Side Unspecified)
Microphone: Earpiece (Side Unspecified) |
| Full Remote OS Support | Not Specified by Manufacturer |
| Sensors | Touch |
Performance
| Frequency Response | 18 Hz to 22,000 Hz (Wireless) |
| Maximum Sound Pressure Level (SPL) | 108 dB at 1 kHz |
| Total Harmonic Distortion (THD) | 0.3% |
| Number of Voice Mics | 2 |
| Beamforming Support | Yes |
| Microphone Type | MEMS |
| Frequency Response | 80 Hz to 6000 Hz |
| Wireless | Bluetooth 5.0 |
| Wireless Modulation | π/4 DQPSK, 8DPSK, GFSK |
| Bluetooth | 5.0 |
| Supported Audio Codecs | AAC, SBC, aptX, aptX LL |
| Frequency | 2.4 GHz (2402 to 2480 MHz) |
| NFC | No |
Wired Connectivity
| Audio Connector | 1x 1/8" / 3.5 mm |
| Audio Connector to Earpiece | 1/8" / 3.5 mm |
| Battery Chemistry | Lithium-Ion Polymer (LiPo) |
| Capacity (mAh) | 600 mAh |
| Runtime | 30 Hours (BT+ANC) |
| Recharge Time | 2 Hours |
| DC Input Power | 5 VDC |
| Charging Input | USB-C |
| Color | Black |
| Weight | Headphones:
8.4 oz / 238 g |
Packaging Info
| Package Weight | 1.205 lb |
| Box Dimensions (LxWxH) | 9.2 x 9.2 x 4.1" |