| Content | Specifications :
- 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 with ANC activated
- Sound pressure level (SPL) : 108 dB (1 kHz/0 dBFS)
- Transmission frequency : 2,402 MHz to 2,480 MHz
- Weight : Approx. 238 g
What's in the box?
- HD 350 BT Wireless headphones
- USB-C charging cable
- Quick Guide
- Safety Guide
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Features & benefits
Wireless high quality sound
Foldable, Portable, Secure
AKG signature sound
Long-lasting comfort
Specs | Audio Specifications |
|---|
| Driver | Closed-back headphones | | Frequency Response | 20-20 kHz | | Maximum Input Power | 50 mW | | Input Impedance | 32 ohms | | Sensitivity | 102 dB SPL/V | | AKG Easy Compare |
|---|
| Style | Over-ear | | Sound | Signature sound | | Connectivity | Bluetooth 3.0 | | Smartphone control | Smartphone | | General Specifications |
|---|
| Colour | Black | | Cable | 1.20 m | | Connector | 3.5mm jack | | Weight | 288 g |
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PRESENCE™ Grey Business is for the mobile professional, who simply needs an excellent communication solution wherever. PRESENCE™ Grey Business is the headset version for use with mobile phones only and comes without carry case
A single sided bluetooth headset ideal for the mobile professional. It comes with a USB charging cable and ear hook and x4 ear sleeves.
- Best-in-class sound – Sennheiser Voice Clarity ensures a clearer and more natural audio experience
- Optimized speech clarity – Unique SpeakFocus™ technology enhances voice clarity in all sound environments
- Wind noise reduction – WindSafe™ technology reduces wind noise in outdoor situations
- Background noise reduction – Advanced Own-Voice-Detector reduces background noise for your listener when you are silent
- Increased comfort – A flexible choice of wearing styles including padded ear hook and optional headband increase user comfort
- Connects to a mobile device
- Extended talk time – Up to 10 hours’ narrowband and 8 hours’ wideband call time between charges
- Increased range – Up to 25 meters with dongle, dependent on environment.
- Lightweight iconic design – Looks and feels as good as it sounds
- Hearing protection – ActiveGard® technology protects you from acoustic shock and sudden sound bursts
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Up to 19 hours play time
Wireless via Bluetooth
True comfort
High quality sound
Premium durable materials
SPECIFICATIONS
Battery
Rechargeable lithium-ion battery
Capacity: 600 mAh
Up to 19 hours with Bluetooth
Charging time: app. 2.5 hours
Bang & Olufsen App
Compatible with Bang & Olufsen App.
Bluetooth
Bluetooth 4.2 · AAC codec
10m operating range · Remembers the last 8 paired devices (connects to one)
Colours
Charcoal grey
Black
Cord
Audio cord 1.2 m with 3.5mm jack
USB cord for charging 0.25m
Designer
Jakob Wagner
Dimensions
195 x 220 x 50mm
7.7 x 8.7 x 3.5in
Frequency
20 - 20,000 Hz
Included in the box
Beoplay H4 headphones
Quick start guide
1.25m audio cable with 3.5 mm jack
0.25m USB to Micro USB cable for charging
Loudspeaker
Electro-dynamic driver, 40 mm diameter
Materials
Lambskin leather, aluminium, stainless steel and braided textile cord.
Microphone
One electret type, Omnidirectional
On device controls
3 buttons on the right ear cup for Bluetooth pairing, controlling music and phone calls: Audio (Play/Pause), Tracks (Next/Previous), Volume (Up/ Down), Calls (Answer/End), Voice Activation
Support
For further support visit the Beoplay H4 support page
Weight
235g
8.3oz (incl. Cable:245g/8.6oz)
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PRESENCE™ Grey UC is for the mobile professionals, who require a consistently excellent communication solution. Optimized for Unified Communications and certified for Skype for Business. (Including carry case and USB dongle) |
- Colorblack
- Dimensions93 x 93 x 27 mm (approx.)
- Bluetooth VersionVersion 4.2, class 1
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- Supported ProfilesA2DP
- Connection cableoptical cable-1.5m/analog 3.5mm cable-1.5m/USB power cable-1.2m
- Operating temperature0-40°C (32-104°F)
- RF output power10 mW (max)
- Number of channels79
- Input voltage range5V
- Frequency bandISM 2.4GHz Band
- Frequency range2.4GHz~2.4835GHz
- RF sensitivity-80dBm (BR, Max)
- Transmission frequency2402 to 2480 MHz
- Weight w/o cable85g
- Connectionanalog or digital
- Audio codecSBC, aptX,aptX LL
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