HD 450BT Refurbished

Step up to great wireless sound with the HD 450BT from Sennheiser. Whether relaxing at home or on the go, they offer an exceptional combination of versatility and superior sound.

Created by audio specialist Sennheiser to deliver a superior sound experience with deep dynamic bass, they feature active noise cancellation to ensure enjoyment without distraction. Sound quality is assured by the latest wireless technology including Bluetooth 5.0 and AAC, aptX™ codec support with aptX™ Low Latency for perfectly synchronized audio when watching videos. The Sennheiser Smart Control App makes it easy to customize the sound via the equalizer or engage podcast mode for improved intelligibility of speech content.

A great companion for travel, the HD 450BT has a superb 30-hour battery life with fast USB-C charging, a Voice Assistant button for Siri and Google Assistant interaction, and a robust folding design for take-anywhere durability.

Frequency response (Microphone)	80 Hz to 6,000 Hz (-3 dB)
Transducer principle (Microphone)	MEMS
Bluetooth Version	5.0
Supported Profiles	HSP, HFP, AVRCP, A2DP
Frequency response	18 Hz to 22,000 Hz (-10 dB)
Sound pressure level (SPL)	108 dB (1 kHz/0 dBFS)
THD, total harmonic distortion	< 0.3 % (1 kHz, 100 dB)
Ear coupling	Around Ear
Transducer principle	Dynamic, closed
Weight	Approx. 238 g
Charging time	Approx. 2 hours
Pick-up pattern	Dual Beamforming
Operating time	30 hours music playback via Bluetooth with ANC activated
Battery Specification	Built-in Lithium-Polymer rechargeable battery: 3.7 V ⎓, 600 mAh
Transmission frequency	2,402 MHz to 2,480 MHz
Charging Current	500 mA max.
Audio codec	SBC, AAC, AptX™, AptX™ Low Latency
Charging voltage	5 V, DC
Modulation scheme	GFSK, π/4 DQPSK, 8DPSK
App support	EQ and updates via Sennheiser Smart Control