Sennheiser Accentum Open True Wireless Earbuds vs Sennheiser HD 450BT Wireless Headphones
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General
| Brand | Sennheiser | Sennheiser |
| Model | Accentum Open | HD 450BT |
| Country of Origin | China | |
| Design | TWS Earbuds | Headphone |
| Type | Open Ear | Over the Ear |
| Connectivity | Wireless | Wireless |
| Designed For | Mobiles, Audio Player |
Design and Body
| Dimensions | 232 x 100 x 195 mm | |
| Weight | 38 g (With Case), 4.4 g Per Earbud | 238 g |
| Foldable | Yes |
Features
| Bluetooth | Yes, 5.3 | Yes, 5.0 |
| Bluetooth Range | 10 m | |
| USB | Yes | Yes |
| Microphone | Yes, Dual-Beamforming Microphones | Yes |
| Voice Assistant | Yes | |
| Water Resistant | Yes | |
| Monaural | Yes | |
| Controls | Touch Controls | Intuitive Controls |
| Music Controls | Pause/Play | |
| Switch between Call and Music | Yes | |
| Additional Features | IPX4 Rated, Open Design, USB-C Charging Case, Multipoint Connectivity | Low Latency, USB-C Charging, Multi Connectivity |
Sound Features
| Deep Bass | Yes | |
| Sensitivity | 109 dB | 108 dB |
| Frequency Response | 18 Hz (Min) - 22 kHz (Max) | |
| Driver Unit | 11 mm | |
| Driver Type | Dynamic | |
| Other Features | Dynamic Sound |
Extra
| Sales Package | Earbuds, Charging Case, USB-C Charging Cable, Quick Start Guide | 1 Headphone, Audio Cable, Charging Cable, Carry Case, Quick Guide, Safety Guide |
| Inline Remote | Yes |
Power Features
| Battery | Lithium Ion, 10 Minutes of Charging = 1.5 Hours of Playtime | Lithium-ion |
| Battery Life | 28 hours (With Case) 6.5 hours (Earbuds) | 30 hours |
| Charging Time | 2 hours |
Warranty
| Warranty | 3 years | 2 years |
| Warranty Type | Manufacturer | Manufacturer |
| Covered in Warranty | Manufacturing Defect | |
| Not Covered in Warranty | Physical Damage |
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