1. Introduction
Dear users, thank you for purchasing Sansui products. To help you understand and use your new TD46 headphones effectively, please read this manual carefully before use. We hope you have a pleasant experience.
Product Overview
The Sansui TD46 headphones feature 50dB Active Noise Cancellation (ANC), Bluetooth 5.4 connectivity, 360° Spatial Audio, and a detachable microphone for clear communication. They are designed for immersive audio experiences with ultra-low latency.

Figure 1: Sansui TD46 ANC Headphone with key features highlighted.
2. Product Components
Familiarize yourself with the various parts of your TD46 headphones:

Figure 2: Headphone component diagram.
- ANC Indicator: Shows the status of Active Noise Cancellation.
- ANC Active Noise Cancellation Dialing Button: Controls ANC and Transparency modes.
- Charging Port: USB Type-C port for charging.
- External Microphone Port: For connecting the detachable microphone.
- Volume + / Volume -: Adjusts audio volume.
- Function Button: Multi-purpose button for playback, calls, and mode switching.
- AUX Port: 3.5mm audio jack for wired connection.
- Microphone: Built-in microphone for calls.
- Indicator Light: Displays various statuses (power, pairing, charging).
3. Setup
3.1 First Time Use & Charging
Before using the headset for the first time, ensure it is fully charged. Use the provided charger to charge the device when the battery is low.
3.2 Power On/Off
- Power On: Under the off state, long press the Function Button for 3 seconds. The headset will automatically power on.
- Power Off: Under the power on state, long press the Function Button for 5 seconds. The headset will automatically disconnect from Bluetooth and power off.
3.3 Bluetooth Pairing Connection
- Enter Pairing State: Turn on the headset. It will automatically enter pairing mode.
- Search for Device: On your mobile phone or other Bluetooth device, open Bluetooth settings and search for available devices.
- Connect: Select the pairing name "SANSUI TD46" from the list and click to connect.
- Voice Prompt: A voice prompt will confirm successful connection.
- Troubleshooting: If you cannot find "SANSUI TD46", turn off and then turn on your phone's Bluetooth to refresh the list.
- Auto-reconnect: After the first successful connection, the headset will automatically connect to the last paired device upon power-on.
Note: Some cell phones may require "0000" as the pairing password.
3.4 Multi-Device Connection (One-to-Two)
The TD46 headphones support connecting to two devices simultaneously. Follow these steps:
- Ensure one device is already connected to the headphones.
- To connect a second device, first disconnect the headphones from the first device (e.g., turn off Bluetooth on the first device or manually disconnect).
- Open Bluetooth on the second device, search for "SANSUI TD46", and click to connect.
- Once the second device is connected, manually click to connect the headphones on the first device again.
- At this point, both devices will be connected to the headset, allowing seamless switching between them.
Video 1: SANSUI TD46 Bluetooth Headphone Operation Demonstration, including multi-device connection.
4. Operation
4.1 Music Playback
- Play/Pause Music: Click the Function Button once.
- Previous Song: Long press the Volume - button.
- Next Song: Long press the Volume + button.
- Volume Down: Click the Volume - button.
- Volume Up: Click the Volume + button.
4.2 Call Management
- To make a call: Double-tap the Dialing Key (for last number redial).
- Answering/Hanging up a call: Click the Dialing Key once.
- Rejecting a call: Long press the Dialing Key for 2 seconds.
4.3 Game/Music Mode
Triple click the Function Button to switch between Game Mode and Music Mode. There will be a voice prompt indicating the current mode.
4.4 ANC Mode/Transparency Mode
Single click the ANC function button to cycle through modes:
- Transparency Mode: Allows you to hear your surroundings.
- ANC Mode: Activates Active Noise Cancellation (-50dB). The green indicator light will be always on.
- Normal Mode: Turns off both Transparency and ANC modes.
Note: You need to turn on the Bluetooth headset before you can use the ANC active noise cancellation function.

Figure 3: Illustration of -50dB Strong Noise Cancellation.
4.5 Voice Control
Double-click on the Function Button to activate voice control (e.g., Siri, Google Assistant).
5. Battery and Indicators
5.1 Headset Battery Indicator
The cell phone status bar can display the headset's device power information. This feature requires your cell phone version to support it.
5.2 Headset Charging Status
The indicator light will show charging status during the charging process. The light will turn off when the battery is full.
5.3 Headphone Low Battery Alert
When the headset is in a low battery state, you will hear a voice prompt indicating that the battery is low. Please charge the headset in time.
5.4 Indicator Status
- Turn on the power: The blue indicator light is on.
- Shutdown: Hundred color indicator lights up and then goes out.
- Waiting for pairing: The white-blue indicator light blinks alternately.
- Pairing success: The indicator light goes off.
- Music status: Indicator light is off.
- Call Status: Indicator light is off.
- Gaming status: Blue indicator light with breathing light effect.
- Low battery: White indicator light flashes and voice prompts.
- Charging status: Blue indicator light is always on.
- Charging complete: The indicator light is off.
- ANC noise canceling mode on: Green indicator light is always on.
6. Maintenance and Care
6.1 General Precautions
- Do not disassemble, repair, or modify the headphones for any reason, as this may cause fire, electronic breakdown, or complete damage to the product.
- Do not place the product in environments with temperatures below 0 °C or above 45 °C.
- When the product indicator light is on, do not look directly at it and keep it away from the eyes of children or animals.
- Do not use this device during thunderstorms, as thunderstorms may cause equipment malfunction or electric shock hazards.
- Do not use strong chemicals, cleaning agents, or strong detergents to clean the equipment or its accessories.
- Do not place the device near heat sources or exposed sources of fire, such as electric heaters, microwaves, ovens, water heaters, stoves, candles, or other places that may generate high temperatures.
- Do not listen to music at high volume for a long time, which may cause hearing damage. Adjust the volume to an appropriate level.
- Do not replace the battery yourself. This device is equipped with a non-removable built-in battery. Unauthorized replacement may damage the battery or device.
- Do not expose magnetic stripe cards (such as bank cards, phone cards, etc.) to this device for a long time, as it may cause damage to the magnetic stripe card due to the magnetic field.
- Before cleaning and maintenance, stop using this device, close all applications, and disconnect all connections or cables to other devices.
7. Troubleshooting
7.1 Common Problems
- The headset can't be paired with the cell phone?
Check whether the headset is paired or connected back, and check the Bluetooth search function of the phone. - The headset cannot be turned on?
Check whether the power of the headset is sufficient, and charge it for 30 minutes before turning it on. - Headset disconnected with cellphone?
The effective distance of this headset is 10 meters indoors. If the distance between the phone and the headset exceeds 10 meters or there are multiple obstacles, the headset and the phone will be disconnected. Keep the effective distance within the use of this headset. - After the headset is connected to the computer or mobile phone, hear a different sound?
Since Bluetooth is a wireless technology, it is sensitive to objects between the headset and the connected device. Check whether there is metal or other objects that affect the connection within the connection range. - After the headset is connected to the mobile phone, can the headset be used to control the application on the mobile phone?
The software settings of the device application may be different, so that the functions of individual applications may not be supported by the headset.
7.2 Restore Factory Settings
If the device cannot be paired, you can reset it as follows:
- Delete the pairing information of "SANSUI" headset on your mobile phone first.
- In the power-on state, long press the Function Button for 5 seconds to restore the factory settings and shut down.
- After resetting, the pairing information recorded by the headset has been cleared. Please use the "Bluetooth pairing" step after reconnecting.
8. Specifications
| Feature | Specification |
|---|---|
| BT Version | Bluetooth 5.4 |
| Playtime (ANC Off) | About 80 hours |
| Resistance | 32Ω |
| Standby Time | About 120 hours |
| Net Weight | About 245g |
| Rated Input | DC 5V |
| Speaker Size (Driver Diameter) | 40mm |
| Material | ABS, Plastic, Leather |
| Width | 81mm |
| Depth | 167mm |
| Height | 186mm |
| Battery Capacity | 500mAh |
| Maximum Wireless Range | 10m-20m |
| Sound Isolating | Yes |
| Earcups Type | Sealed |
| Max Output | 30mW |
| Number Of Drivers | 2 |
| Charging Method | Cable (Type-C) |
| Headphone Pads Material | Synthetic leather |
| Impedance Range | up to 32 Ω |
| Features | Waterproof, With microphone, Apple Siri Support, Detachable Cable, Active Noise Cancelling, Dual Connection, Google Assistant Support |
| Codecs | AAC, sbc |
| Waterproof | Yes |
| Frequency Response Range | 20 - 20000Hz |
| Sensitivity | 122dB |
| Plug Type | None (Wireless) |
| Function | For Internet Bar, Monitor Headphone, for Video Game, for Flying, Common Headphone, for Hunting & Shooting, For Mobile Phone, HiFi Headphone, Sport, For Outdoor, For Office, For DJ, For Study |
| Active Noise-Cancellation | No (Note: Product title states 50dB ANC, but spec says No. Clarification needed, but following spec here.) |
| Volume Control | Yes |
| Control Button | Yes |
| Vocalism Principle | Dynamic |
| Wireless Type | Bluetooth |
| Connectors | Type C (for charging) |
| Communication | Wireless+Wired |
| Style | Wired in-ear headphones (Note: This contradicts "Over-Ear" and images. Assuming "Over-Ear" is correct based on images and product title.) |
| Origin | Mainland China |
9. Package Contents
The following items are included in your Sansui TD46 headphone package:
- TD46 Headphone × 1
- User Guide × 1 (This manual)
- Type-C Charging Cable × 1
- External Microphone × 1
- 3.5mm AUX Cable × 1

Figure 4: Package Contents.
10. User Tips
- Audio Quality: Users have reported very satisfying audio quality.
- ANC Performance: The Active Noise Cancellation (ANC) feature is noted to perform as described, providing a quiet listening environment.
- Microphone: The headphones include both an internal microphone and a detachable external microphone for clear calls.
- No Dedicated App: There is no mention of a dedicated application or software for configuring the headphones.
- Language: The language of voice prompts cannot be modified.
11. Warranty and Support
For detailed warranty information, please refer to the official product page or contact your retailer. A digital version of this user manual is available for download:
For further assistance or technical support, please contact Sansui customer service.