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Photo 0of Bowers & Wilkins PI4 In-Ear Wireless Headphones w/ ANCPhoto 1of Bowers & Wilkins PI4 In-Ear Wireless Headphones w/ ANCPhoto 2of Bowers & Wilkins PI4 In-Ear Wireless Headphones w/ ANCPhoto 3of Bowers & Wilkins PI4 In-Ear Wireless Headphones w/ ANCPhoto 4of Bowers & Wilkins PI4 In-Ear Wireless Headphones w/ ANCPhoto 5of Bowers & Wilkins PI4 In-Ear Wireless Headphones w/ ANC

Product Overview

Bowers & Wilkins PI4 are premium wireless in-ear headphones with active noise cancellation. They are powered by B&W's 14.2mm full-range dynamic drivers and offer a 10-hour battery life with support for fast charging.
The traditional in-ear form factor combined with the provided stability fins allow the PI4 to offer more assuredness in moving about. The larger 14.2mm driver also offers improved control over a wide frequency range compared to the PI5, which share much of the same features with the PI4 but are true-wireless earphones.
The B&W PI4 support the same set of advanced aptX Bluetooth codecs as do the flagship PI7. Their active noise cancellation, on the other hand, is the same as offered by the PI5. Two microphones are used for ANC, while another two for conversations.
For those who do not require ANC, the Bowers & Wilkins PI3 may be an interesting alternative.

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Specifications

Connectivity

Ports
USB-C
Wireless Connectivity
Bluetooth, USB-C

Construction

Cable
20cm USB-A to USB-C cable
Colors
Black, Gold, Silver
Drivers
14.2mm full range
Form Factor
In-Ear, Neckband Wireless Headphones, Earbuds
Headphone Type
Dynamic headphones
Microphone
2x mics for ANC + 2x mics for telephony

Dimensions

Weight
40 g

Function

Bluetooth Codecs
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
3hrs with 15min charge
Noise Cancellation
Yes

Performance

Battery Life
10hrs Bluetooth with ANC (12hrs w/o)
Frequency Response
10Hz ~ 30kHz
Total Harmonic Distortion
0.3% (1kHz/10mW)

Production

Accessory
Ear Tips: S / M / L
Debut
2019-10

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