Take your love of audio further

The HD 350BT is the ideal choice for people who love great audio. Enjoy an engaging sound experience with deep dynamic bass.

The Sennheiser HD Series ‒ your audio companion for every need!

Crafted from high-quality materials, the robust and stylish HD models offer an exceptional combination of versatility and superior sound. At home while listening to a podcast or on the go with your favorite song, you can count on the new HD series to be your ultimate companion for wireless audio – whatever you listen to.

Exceptional wireless sound

The HD 350BT delivers an engaging sound experience with deep dynamic bass. Flawless transmission is assured by the latest wireless technology, including Bluetooth® 5.0 and high-quality wireless codecs such as AAC, aptX™, and aptX™ Low Latency – for perfect audio‒video synchronization.

All day, every day

Thanks to an impressive 30-hour battery life and fast USB-C charging, the HD 350BT is your ideal companion for listening throughout the day. Available in black or white, this headset has been created from durable, high-quality materials to be tough enough to take anywhere, with a compact folding design that fuses comfort and minimalist style.

It‘s all about you

Customizing your sound experience is effortless thanks to the Sennheiser Smart Control App. Its intuitive equalizer lets you easily adjust the sound to fit your taste. The special podcast mode can be selected to optimize the intelligibility of your favorite podcasts, audio books, and other speech content.

Connect and interact

For you to enjoy your connected lifestyle, the HD 350BT has a dedicated Voice Assistant button for instant voice interaction with Siri or the Google Assistant. Controlling music and calls is also intuitive thanks to easy-access touch buttons on the earcups.

Personalize your sound experience with the Smart Control App

Listen to your music the way you want. This free dedicated app for iOS and Android provides an effortless way to control, personalize, update and configure your Sennheiser headphone, headset or soundbar.

What's in the box?

HD 350 BT Wireless headphones

USB-C charging cable

Quick Guide

Safety Guide

Technical Data

Frequency response (Microphone) : 80 Hz to 6,000 Hz (-3 dB)

THD, total harmonic distortion : < 0.3 % (1 kHz, 100 dB)

Transducer principle : Dynamic, closed

Pick-up pattern : Dual Beamforming

Transducer principle (Microphone) : MEMS

Bluetooth Version : 5.0

Frequency response : 18 Hz to 22,000 Hz (-10 dB)

Modulation scheme : GFSK, π/4 DQPSK, 8DPSK

Battery Specification : Built-in Lithium-Polymer rechargeable battery: 3.7 V ⎓, 300mAh

Charging Current : 320 mA max.

App support : EQ and updates via Sennheiser Smart Control

Audio codec : SBC, AAC, AptX™, AptX™ Low Latency

Supported Profiles : HSP, HFP, AVRCP, A2DP

Charging time : Approx. 2 hours

Charging voltage : 5 V, DC

Ear coupling : Around Ear

Operating time : 30 hours music playback via Bluetooth

Sound pressure level (SPL) : 108 dB (1 kHz/0 dBFS)

Transmission frequency : 2,402 MHz to 2,480 MHz

Weight : Approx. 238 g