The Sennheiser HD450BT represent the absolute best value in active noise cancellation on the market. Performance is close to $499 plus models, outstanding sound quality even at double the price. These headphones fold into a compact footprint for travel.

HD450BT Specifications

Frequency response (Microphone)80 Hz to 6,000 Hz (-3 dB)

• Transducer principle (Microphone)MEMS

• Bluetooth Version5.0

• Supported ProfilesHSP, HFP, AVRCP, A2DP

• Frequency response18 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 couplingAround Ear

• Transducer principleDynamic, closed

• WeightApprox. 238 g

• Charging timeApprox. 2 hours

• Pick-up patternDual Beamforming

• Operating time30 hours music playback via Bluetooth with ANC activated

• Battery SpecificationBuilt-in Lithium-Polymer rechargeable battery: 3.7 V ⎓, 600 mAh

• Transmission frequency2,402 MHz to 2,480 MHz

• Charging Current500 mA max.

• Audio codecSBC, AAC, AptX™, AptX™ Low Latency

• Charging voltage5 V, DC

• Modulation schemeGFSK, π/4 DQPSK, 8DPSK

• App supportEQ and updates via Sennheiser Smart Control