Compare Sennheiser HD 450BT vs Bowers & Wilkins PI3 vs Lenovo Go USB-C Headphones
Connectivity
Ports
USB-C
USB-C
USB-C
Wireless Connectivity
Bluetooth 5.0
Bluetooth, USB-C
Construction
Battery | Capacity
600 mAh
Cable
20cm USB-A to USB-C cable
1.2 m, braided, with in-line control
Carrying Case
Soft travel pouch
Colors
Black, White
Space Grey, Blue, Gold
Thunder Black, Storm Grey
Drivers
9.2mm full range + Balanced Armature
10 mm
Form Factor
Wireless headphones, over-ear headphones
In-Ear, Neckband Wireless Headphones, Earbuds
Wired in-ear headphones (earbuds)
Headphone Type
Dynamic headphones, Closed headphones
Dynamic headphones
Microphone
MEMS
1x mics for telephony
3x Mics
Dimensions
Size | Height
22.26 mm / 0.88"
Size | Length
27.83 mm / 1.1"
Size | Width
22.16 mm / 0.87"
Weight
238 g
31 g
21.5 g / 0.05 lb
Function
Bluetooth Codecs
SBC, AAC, AptX, AptX Low Latency
AptX-Adaptive, aptX-HD, aptX-Classic, AAC, SBC
Bluetooth Profiles
A2DP v1.3.1, AVRCP v1.6.1, HFP v1.7.1, HSP v1.2, BLE GATT
Fast Charging
2hrs with 15min charge
Microphone Pickup Pattern
Dual Beamforming
Omni-directional
Noise Cancellation
Yes
No
Hybrid ANC, Max -30 dB
Performance
Battery Life
30 hours music playback via Bluetooth with ANC activated
8hrs Bluetooth with ANC
Charging Time
2 h
Frequency Response
18Hz to 22kHz (-10 dB)
10Hz ~ 30kHz
20 Hz ~ 20 kHz
Impedance
32 ohms
Max Sound Level
108 dB (1 kHz/0 dBFS)
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
0.3% (1kHz/10mW)
3%
Production
Accessory
Ear Tips: S / M / L
Availability
2021-11
Debut
2020 CES
2019-10
2021-06 (MWC 2021)
Made In
China
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