Compare Sennheiser HD 450BT vs Microsoft Surface Headphones 2 vs Lenovo Go USB-C Headphones
Connectivity
Ports
USB-C
USB-C, 3.5mm audio jack
USB-C
Wireless Connectivity
Bluetooth 5.0
Construction
Battery | Capacity
600 mAh
Buttons
4, Power button, Mute button, Volume dial (right ear), Noise Cancellation dial (left ear)
Cable
1.2 m Audio cable, 1.5 m USB cable
1.2 m, braided, with in-line control
Carrying Case
Soft travel pouch
Colors
Black, White
Light Gray, Matte Black
Thunder Black, Storm Grey
Drivers
40mm Free Edge speaker
10 mm
Form Factor
Wireless headphones, over-ear headphones
Wired in-ear headphones (earbuds)
Headphone Type
Dynamic headphones, Closed headphones
Microphone
MEMS
3x Mics
Dimensions
Size | Depth
48 mm
Size | Height
204 mm
22.26 mm / 0.88"
Size | Length
27.83 mm / 1.1"
Size | Width
195 mm
22.16 mm / 0.87"
Weight
238 g
290.3 g
21.5 g / 0.05 lb
Function
Bluetooth Codecs
SBC, AAC, AptX, AptX Low Latency
SBC and aptX
Microphone Pickup Pattern
Dual Beamforming
Omni-directional
Noise Cancellation
Yes
Up to 30 dB for active noise cancellation, Up to 40 dB for passive noise cancellation
Hybrid ANC, Max -30 dB
Operating System
Windows 10, iOS, Android, MacOS
Performance
Battery Life
30 hours music playback via Bluetooth with ANC activated
Up to 20 h (Bluetooth, ANC on)
Charging Time
2 h
Frequency Response
18Hz to 22kHz (-10 dB)
20 Hz – 20 kHz
20 Hz ~ 20 kHz
Impedance
32 ohms
Max Sound Level
108 dB (1 kHz/0 dBFS)
Up to 115 dB
Microphone Frequency Response
80 Hz to 6000 Hz (-3 dB)
50 Hz ~ 8 kHz
Microphone Sensitivity
-26 dB
Power Input
10 mW
Sensitivity
110 dBm ± 3 dBm
Total Harmonic Distortion
3%
Production
Availability
2021-11
Debut
2020 CES
2020-05
2021-06 (MWC 2021)
Made In
China
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