Compare Bowers & Wilkins PI4 vs Sennheiser HD 450BT vs Sennheiser IE 300
Connectivity
Ports
USB-C
USB-C
3.5 mm
Wireless Connectivity
Bluetooth, USB-C
Bluetooth 5.0
Construction
Battery | Capacity
600 mAh
Cable
20cm USB-A to USB-C cable
125cm, reinforced with para-aramid
Colors
Black, Gold, Silver
Black, White
Drivers
14.2mm full range
7mm Extra Wide Band (XWB) transducer
Form Factor
In-Ear, Neckband Wireless Headphones, Earbuds
Wireless headphones, over-ear headphones
In-ear headphones
Headphone Type
Dynamic headphones
Dynamic headphones, Closed headphones
Single Dynamic Driver, Pressure Chamber
Microphone
2x mics for ANC + 2x mics for telephony
MEMS
Dimensions
Weight
40 g
238 g
4 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
3hrs with 15min charge
Microphone Pickup Pattern
Dual Beamforming
Noise Cancellation
Yes
Yes
Performance
Battery Life
10hrs Bluetooth with ANC (12hrs w/o)
30 hours music playback via Bluetooth with ANC activated
Charging Time
2 h
Frequency Response
10Hz ~ 30kHz
18Hz to 22kHz (-10 dB)
6 Hz to 20 kHz
Max Sound Level
108 dB (1 kHz/0 dBFS)
124 dB (1 kHz / 1 Vrms)
Microphone Frequency Response
80 Hz to 6000 Hz (-3 dB)
Total Harmonic Distortion
0.3% (1kHz/10mW)
Production
Accessory
Ear Tips: S / M / L
Eartips: Silicone and memory foam ear adaptors in S / M / L (6 in total) | Cable: Optional balanced cables (2.5mm or 4.4mm)
Debut
2019-10
2020 CES
2021-01-12 (CES 2021)
Made In
Germany
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