Introduction
Thank you for choosing the Sennheiser HD 450BT Wireless Headphones. These headphones combine high-quality audio with active noise cancellation, Bluetooth 5.0 technology, and a long-lasting battery to provide an exceptional listening experience. This manual will guide you through the setup, operation, and maintenance of your new headphones.
Image: Sennheiser HD 450BT wireless headphones in white, showcasing their sleek design.
What's in the Box
Your Sennheiser HD 450BT package includes the following items:
- HD 450BT wireless headphones
- Audio cable (for wired mode)
- USB-C charging cable
- Carry case
- Quick guide & safety guide
Image: Sennheiser HD 450BT headphones folded, shown with the included audio cable, USB-C charging cable, and carry case.
Product Overview
Familiarize yourself with the controls and features of your HD 450BT headphones.
Image: A close-up view of the right earcup of the Sennheiser HD 450BT headphones, highlighting the control buttons and ports.
Controls and Ports:
- Power Button: Used to power on/off the headphones and initiate Bluetooth pairing.
- Multi-function Button: Controls playback (play/pause), track skipping (forward/backward), and call management (answer/reject/hold).
- Volume Rocker: Adjusts the listening volume up or down.
- Virtual Assistant Button: Activates your device's voice assistant (Siri, Google Assistant).
- ANC Button: Toggles Active Noise Cancellation on/off.
- USB-C Port: For charging the headphones.
- 2.5mm Audio Jack: For wired audio connection using the provided audio cable.
Setup
1. Charging the Headphones
Before first use, fully charge the headphones. A full charge takes approximately 2 hours and provides up to 30 hours of battery life with ANC enabled.
- Connect the USB-C charging cable to the USB-C port on the headphone.
- Connect the other end of the USB-C cable to a suitable USB power source (e.g., computer USB port, USB wall adapter).
- The LED indicator will show charging status and turn off when fully charged.
Image: The Sennheiser HD 450BT headphones with the USB-C charging cable plugged into the earcup port.
2. Powering On/Off
- To Power On: Press and hold the Power button for 2 seconds. The LED will light up.
- To Power Off: Press and hold the Power button for 2 seconds. The LED will flash red and then turn off.
3. Bluetooth Pairing
Pair your headphones with your Bluetooth-enabled device (smartphone, tablet, computer).
- Ensure the headphones are powered off.
- Press and hold the Power button for 5 seconds until the LED flashes blue and red alternately. This indicates pairing mode.
- On your device, go to Bluetooth settings and search for "HD 450BT".
- Select "HD 450BT" from the list of available devices to connect.
- A voice prompt will confirm successful pairing.
Video: A detailed review of the Sennheiser HD 450BT headphones, including a demonstration of the pairing process and controls. This video is provided by All Things Tech (Seller).
Operating Instructions
1. Music Playback
- Play/Pause: Press the Multi-function button once.
- Next Track: Push the Multi-function button upwards and release.
- Previous Track: Push the Multi-function button downwards and release.
- Volume Up: Push the Volume rocker upwards.
- Volume Down: Push the Volume rocker downwards.
2. Call Management
- Answer/End Call: Press the Multi-function button once.
- Reject Call: Press and hold the Multi-function button for 2 seconds.
- Hold Call: During an active call, press and hold the Multi-function button for 2 seconds.
3. Active Noise Cancellation (ANC)
The ANC feature reduces ambient noise for uninterrupted listening.
- Toggle ANC: Press the dedicated ANC button once to turn it on or off.
4. Virtual Assistant
Access your device's virtual assistant for hands-free control.
- Activate Assistant: Press the Virtual Assistant button once.
Maintenance and Care
- Clean the headphones regularly with a soft, dry cloth.
- Avoid using cleaning agents that contain alcohol, ammonia, or abrasives.
- Store the headphones in their carry case when not in use to protect them from dust and damage.
- Avoid exposing the headphones to extreme temperatures, humidity, or direct sunlight.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| No power | Charge the headphones using the USB-C cable. |
| Cannot pair via Bluetooth | Ensure headphones are in pairing mode (flashing blue/red LED). Check your device's Bluetooth settings. Restart both devices. |
| No sound or low volume | Increase volume on both headphones and connected device. Ensure headphones are properly paired. Try a different audio source. |
| ANC not working effectively | Ensure ANC is toggled on. Adjust headphone fit for a better seal around your ears. |
Specifications
- Model Name: HD 450BT
- Connectivity Technology: Wireless (Bluetooth 5.0)
- Noise Control: Active Noise Cancellation
- Battery Life: Up to 30 Hours
- Charging Time: Approximately 2 Hours (via USB-C)
- Headphones Jack: USB-C (charging), 2.5mm Audio (wired)
- Control Type: Buttons (App, Touch, Voice)
- Item Weight: 238 Grams (8.4 ounces)
- Product Dimensions: 6.1 x 2.6 x 7.6 inches
- Material: Leather (earpads)
- Special Feature: Foldable, Lightweight
Warranty and Support
For warranty information, technical support, or further assistance, please refer to the official Sennheiser website or contact their customer service directly. Keep your proof of purchase for warranty claims.
Visit the Sennheiser Store for more products and information.
