Compare Bowers & Wilkins PI3 vs Sennheiser HD 450BT vs Huawei FreeLace Pro
Connectivity
Ports
USB-C
USB-C
USB-C
Wireless Connectivity
Bluetooth, USB-C
Bluetooth 5.0
Construction
Battery | Capacity
600 mAh
150 mAh
Cable
20cm USB-A to USB-C cable
814 mm
Colors
Space Grey, Blue, Gold
Black, White
Graphite Black, Spruce Green, Dawn White
Drivers
9.2mm full range + Balanced Armature
14.2 mm dynamic
Form Factor
In-Ear, Neckband Wireless Headphones, Earbuds
Wireless headphones, over-ear headphones
Headphone Type
Dynamic headphones
Dynamic headphones, Closed headphones
Microphone
1x mics for telephony
MEMS
Three mics, two for ANC
Dimensions
Weight
31 g
238 g
34 g
Function
Bluetooth Codecs
AptX-Adaptive, aptX-HD, aptX-Classic, AAC, SBC
SBC, AAC, AptX, AptX Low Latency
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
Noise Cancellation
No
Yes
Performance
Battery Life
8hrs Bluetooth with ANC
30 hours music playback via Bluetooth with ANC activated
24 h playback
Charging Time
2 h
60 min
Frequency Response
10Hz ~ 30kHz
18Hz to 22kHz (-10 dB)
Max Sound Level
108 dB (1 kHz/0 dBFS)
Microphone Frequency Response
80 Hz to 6000 Hz (-3 dB)
Total Harmonic Distortion
0.3% (1kHz/10mW)
Production
Accessory
Ear Tips: S / M / L
Debut
2019-10
2020 CES
2020-09-10
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