Sennheiser HD 450BT Wireless Headphones Black

Product Code: SYHD450BTB
Product Code:SYHD450BTB
These Sennheiser Headphones are ideal for listening to high quality sound at home or on the go, thanks to a comfortable over-ear design, Low Latency technology and active noise cancellation. It has a lengthy 30 hour battery life and USB-C fast charging to ensure that you're always ready to experience music, podcasts, audiobooks and other forms of media. Plus with the Sennheiser Smart Control app, you can customise your sound settings via an equalizer.
  • These wireless headphones connect to your device via Bluetooth 5.0 technology.
  • They're designed for your favourite music, media, podcasts, audiobooks and more
  • The over-ear design provides a comfortable, immersive audio experience.
  • The touch buttons on the earcups allow for easy calls and music management.
  • The Sennheiser Smart Control app allows you to use an equalizer to control your audio setting via your smartphone or tablet.
  • The headphones have a 30 hour battery life and fast charging via USB-C.
  • The earphones have AAC and SBC codec support, as well as Low Latency technology, to ensure that your audio is of high quality.
  • The active noise cancellation ensures that aren't distracted while on your commute to work, school or university.
  • A 2 year warranty is included.
  • They come in a sleek black design.

Officeworks Bring Back I.T. Program.

Warranty Logo

Product Disclaimer: Officeworks cares greatly about the safety of our customers and makes every effort to ensure that the images, descriptions and formulations of each product we sell are accurate and up to date. However, product formulas can change and there may be slight delays in updating the information online. If you have particular concerns about the materials or ingredients used in this product, please read the label carefully on the product or contact the manufacturer for the most up to date information.


  • Barcode
  • Brand
  • Descriptive Colour
  • Ear Placement
    Full size over ear
  • Folding Type
    Yes, inwards
  • Headphones Use
  • Included Accessories
    USB C Charging Cable, Audio Cable, Case
  • Manufacturer's Warranty
    2 year
  • Model Number
  • Product Dimensions (mm)
    195W x 100D x 232H mm
  • Product Weight (kg)
    0.560 kg


  • Country of Manufacture
  • Part Number


  • Noise-cancelling


  • Battery Included
  • Power & Charging Interface
  • Rechargeable Battery


  • Pack/Carton Quantity
  • Total Individual Units
  • Units Per Pack/Carton

Sound Input

  • Microphone Type

Sound Output

  • Connectivity Technology
    Wireless, Wired
  • Headphones Type

Below is general information about the Officeworks Delivery Offer. The specific delivery time frame and fees will be calculated in the checkout for your order.

Enter your postcode below for delivery times and cost for your area.

Zone 1

Same Day
Next Day

Order < $55





Order > $55





Large Items





*Available for eligible orders only.

Large items will be delivered separately and incur an additional delivery fee. Multiple fees may apply if more than one delivery option is selected.

Select a date to receive all your items

You may be offered an 8-day window to select the date you want to receive your deliveries (depending on the availability of items in your cart)

All day / AM / PM / Evening delivery

Now you can select the time of day you want to receive your deliveries. You may be offered the selection of 4 time windows:

All day
8am - 5pm
8am - 1pm
1pm - 5pm
5pm - 8pm
Saturday delivery

You can also opt in for a Saturday delivery between 8am-1pm for an additional fee (pending availability)

Zone 2

Deliveries to Regional areas incur a delivery fee of $5.95. Delivery will occur in between 1-3 business days.

Large items will be delivered separately within 1-5 business days and will incur an additional delivery fee of $49.95.

Zone 3

Deliveries to Country areas incur a delivery fee of $25.95. Delivery will occur in between 1-5 business days.

Large items will be delivered separately within 1-5 business days and will incur an additional delivery fee of $59.95.

Delivery Zones

Officeworks delivery zones are determined by the serviceability from our courier companies' distribution centres.

Previous delivery zone groupings of Metro, Regional and Country have been reclassified as zone 1, 2 and 3 to improve alignment of available delivery services to geographic areas. To determine the zone of your Postcode & Suburb, please refer to the Delivery Fee Calculator.

Multiple fees may apply if more than one delivery option is selected for split deliveries.

Delivery Only Items

Some of our products are delivery only and not available for Click & Collect. This is because they are considered too large and heavy for our team members and customers to handle in store. If you want to purchase a delivery only product and have other items in your cart, your entire order will be delivered to your door and additional delivery fees will apply.

Back to top