Sennheiser SD Office ML Specifications, Tests and Review

Headphone type
Convertible
Connectivity
Wireless
Frequency Response
150 - 6800 Hz
Microphone
Boom

Complete technical specifications, details, expert ratings and review of Sennheiser SD Office ML. Find out how your chosen headphones stack up against the competition and whether they are the ones that best meet your expectations with the headphone comparison feature.

DESIGN AND DIMENSIONS Sennheiser SD Office ML
Product Type Headset - DECT 6.0 - wireless
Weight 49.9 g Better than 90 % of headphones rated.
Recommended Use Phone, conference
Bluetooth Range (Operating Distance) 179.8 m Better than 90 % of headphones rated.

​​The Sennheiser SD Office ML are wireless headphones. The wireless connection allows absolute freedom of movement and with that increases the comfort of using the headphones. This feature is very popular, especially when using headphones every day. The limiting factor of wireless headphones is a certain delay in the sound transmission between the source and the headphones (almost indistinguishable for a normal user), as well as the need to charge them (in the case of wired headphones, the headphones are recharged by connecting the cable itself). The maximum range of the headphones is up to 179.8 m. This range represents the distance from the sound source at which the headphones with wireless sound transmission can be used. However, the maximum range may be affected by obstacles such as walls or people, etc. The weight of the headphones is 49.9 g.

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SOUND QUALITY Sennheiser SD Office ML
Headphones Form Factor Convertible
Connectivity Technology Wireless
Wireless Technology DECT 6.0
Bluetooth Profiles Generic Access Profile (GAP)
Sound Output Mode Mono
Frequency Response 150 - 6800 Hz Worse than 94 % of headphones rated.
Magnet Material Neodymium

The sound quality can be affected by many factors. When it comes to frequency range, the wider it is, the more detail you will hear when listening. However, the range a person can perceive is highly individual. The average person is able to perceive frequencies in the range of 16 to 20 000 Hz. So the most common frequency range you will see on the market is 20 to 20,000 Hz. Lower frequencies up to approximately 256 Hz are considered bass frequencies. Therefore, the lower the bottom value is, the better the headphones will reproduce bass. Conversely, values from approximately 2 048 Hz upwards are treble. That is why headphones with a high upper value will provide a much more accurate reproduction of high notes. Sennheiser SD Office ML offers a frequency range of 150 - 6800 Hz.

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MICROPHONE Sennheiser SD Office ML
Type Boom
Microphone Operation Mode Mono
Frequency Response 150 - 6800 Hz Worse than 82 % of headphones rated.

Sennheiser SD Office ML has a boom–type microphone.

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REMOTE CONTROL Sennheiser SD Office ML
Controls Volume, microphone on/mute
CABLE Sennheiser SD Office ML
Cable Type USB cable
Audio cable
BATTERY AND CHARGING Sennheiser SD Office ML
Battery Type Headset battery rechargeable - lithium polymer
Battery Life 12 hour(s) Worse than 59 % of headphones rated.
Standby Time 100 hours Worse than 62 % of headphones rated.
Power Device Power adapter - external
Charging Time 1 hour(s) Better than 99 % of headphones rated.

In terms of headphone battery life as a significant factor in the purchase decision, it depends on what you want to use the headphones for and potentially how often you will be able to recharge them. Headphones with up to a few hours of battery life are more suitable for home use as they will require more frequent charging. Headphones with a battery life of around 10 hours or more are already more suitable for commuting and shorter journeys. However, nowadays you can also find headphones on the market that have a battery life in the higher tens to hundreds of hours. In this case, you do not have to worry about your headphones simply running out of power on longer journeys, and you will not have to deal with constant recharging. The battery life of the Sennheiser SD Office ML reaches up to 12 hour(s).

The standby battery life quoted by the manufacturer is 100 hours.

Charging time is 1 hour(s).

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OTHERS Sennheiser SD Office ML
Included Accessories Headband, base station, 3 earhooks, name plate holder
Software Certification Certified for Skype for Business
Service & Support Limited warranty - 2 years

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