Compare Sennheiser HD 450BT vs DALI IO-4 vs Sennheiser HD 350BT
Connectivity
Ports
USB-C
3.5mm + USB-C
USB-C
Wireless Connectivity
Bluetooth 5.0
Bluetooth 5.0
Bluetooth 5.0
Construction
Battery | Capacity
600 mAh
320 mAh
Colors
Black, White
Army Green, Chalk White, Iron Black, Caramel White
Black, White
Drivers
50 mm free edge paper fibre cone
Form Factor
Wireless headphones, over-ear headphones
Over-ear headphones, wireless headphones
Wireless headphones, over-ear headphones
Headphone Type
Dynamic headphones, Closed headphones
Closed headphones, Dynamic headphones
Dynamic headphones, Closed headphones
Material
Closed back circumaural (over ear)
Microphone
MEMS
MEMS
Dimensions
Weight
238 g
320 g
238 g
Function
Bluetooth Codecs
SBC, AAC, AptX, AptX Low Latency
AAC, aptX, aptX HD
SBC, AAC, AptX, AptX Low Latency
Bluetooth Profiles
HSP, HFP, AVRCP, A2DP
Microphone Pickup Pattern
Dual Beamforming
Dual Beamforming
Noise Cancellation
Yes
No
No
Weather Resistance
IP53
Performance
Battery Life
30 hours music playback via Bluetooth with ANC activated
60 h
30 hours music playback via Bluetooth
Charging Time
2 h
2.5 h
2 h
Frequency Response
18Hz to 22kHz (-10 dB)
10Hz - 20kHz
18Hz to 22kHz (-10 dB)
Impedance
25 ohms (Via 3.5mm)
Max Sound Level
108 dB (1 kHz/0 dBFS)
100 dB
108 dB (1 kHz/0 dBFS)
Microphone Frequency Response
80 Hz to 6000 Hz (-3 dB)
80 Hz to 6000 Hz (-3 dB)
Sensitivity
200 mV rms / 175 mV rms
Production
Debut
2020 CES
2019-10
2020 CES
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