DESIGN
Available in black or white models, the circumaural
(over-ear) HD 450BT headphones feature generously
cushioned memory foam earpads and an overall
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uncluttered look, with most of the controls subtly
relegated to side panels. Internally, each enclosure
houses a 32mm dynamic driver delivering a frequency
range of 18Hz to 22kHz. The headphones are
compatible with Bluetooth 5.0 and support AAC, AptX,
and SBC codecs.
The right earcup’s side panel houses controls for power/
pairing, playback, track navigation, a volume rocker,
and a dedicated voice assistant button. The power
button doubles as the ANC button depending on how
long you press (two seconds for power, a quick press for
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3.5mm jack located on this same side panel, as is a
USB-C-to-USB-A charging cable for the USB-C port
also on this panel.
Sennheiser HD
450BT
PROS Strong noise
cancellation for the
price. Excellent audio
performance. Can be
used in passive mode
with cable, or wired
mode with ANC
enabled. User-
adjustable EQ.
CONS Noise
cancellation is not
class-leading.
BOTTOM LINE
Sennheiser’s HD
450BT headphones
deliver excellent
Bluetooth audio and
solid noise
cancellation for a
bargain price.