Introduction
The Monoprice TWE-04 True Wireless Earphones provide a seamless audio experience without the constraints of wires. Designed for comfort and portability, these earphones deliver clear sound with extended frequency response and robust bass, suitable for various audio content.
Key features include:
- Bluetooth 5 Wireless Technology: Enables stable connection up to 32 feet (10 meters) from compatible devices.
- High-Quality Sound: Equipped with metal composite drivers for balanced audio reproduction.
- IPX4 Water Resistance: Protects against sweat and water splashes, making them suitable for active use.
- Ergonomic Design: Offers comfort for extended listening sessions.
- Portable Charging Case: Provides convenient charging on the go.
What's in the Box
Upon opening the package, ensure all components are present:
- Monoprice TWE-04 TrueWireless Earphones (Left and Right)
- Portable Charging Case
- Charging Cable
- User Manual (this document)
Product Overview

Image: The Monoprice TWE-04 TrueWireless Earphones resting inside their open charging case. The earbuds are black with red indicator lights, and the case is also black with blue indicator lights at the front.

Image: The two black Monoprice TWE-04 TrueWireless Earphones are shown below their open charging case. The case is empty, revealing the charging contacts, while the earbuds display their gold charging pins and 'L' and 'R' markings.

Image: A close-up perspective of the two black Monoprice TWE-04 TrueWireless Earphones. The image highlights the ergonomic shape, the silicone ear tips, and the charging contacts on the stem of each earbud.

Image: The black, oval-shaped charging case for the Monoprice TWE-04 TrueWireless Earphones is shown closed. The case has a matte finish and features a subtle "IIIP" logo on the lid and a USB charging port on the front.

Image: A single black Monoprice TWE-04 TrueWireless Earphone is displayed, featuring a prominent blue LED indicator light on its stem, indicating power or connection status. The earbud's design, including the ear tip and control button, is visible.

Image: The Monoprice TWE-04 TrueWireless Earphones and their charging case are presented within their black retail packaging. The open box shows the earphones nestled in their compartment, with the closed box lid featuring the Monoprice 'M' logo in the background.
Setup
1. Charging the Earphones and Case
Before first use, fully charge both the earphones and the charging case. Connect the provided charging cable to the charging port on the case and to a USB power source. The indicator lights on the case will show charging status. Once fully charged, the indicator lights will change or turn off.
- Place the earphones into the charging case, ensuring they are properly seated. The earphones will begin charging automatically.
- A full charge provides approximately 3.5 hours of continuous listening. The charging case extends the total listening time significantly.
2. Pairing with Your Device
The Monoprice TWE-04 earphones utilize Bluetooth 5 for a stable wireless connection.
- Ensure the earphones are charged.
- Open the charging case. The earphones will automatically enter pairing mode, and their indicator lights will flash (typically blue and red, or just blue).
- On your device (smartphone, tablet, computer), go to the Bluetooth settings.
- Search for new devices and select "Monoprice TWE-04" (or similar name) from the list of available devices.
- Once connected, the earphone indicator lights will stop flashing and may turn off or show a steady blue light. You will hear an audible confirmation.
Troubleshooting Pairing Issues (Single Earbud or No Pairing):
If you experience issues with only one earbud working or difficulty pairing both earbuds together, follow these steps:
- Ensure any clear plastic covers on the earbud charging contacts have been removed.
- Fully charge both earbuds and the charging case.
- Remove both earbuds from the case.
- Press and hold the buttons on both earbuds simultaneously for approximately 10 seconds until their indicator lights flash rapidly or turn off. This performs a reset.
- Return both earbuds to the charging case and close the lid.
- Wait a few seconds, then open the lid and remove the earbuds. They should now attempt to pair with each other.
- Go to your device's Bluetooth settings, forget or remove any previous "Monoprice TWE-04" entries, and then attempt to pair again as described in step 2-5 above.
Operating Instructions
Controls
The TWE-04 earphones feature intuitive controls, typically located on the outer surface of each earbud. Specific functions may include:
- Play/Pause: Single press on either earbud.
- Next Track: Double press on the right earbud.
- Previous Track: Double press on the left earbud.
- Answer/End Call: Single press during an incoming call or active call.
- Reject Call: Press and hold during an incoming call.
- Activate Voice Assistant: Triple press on either earbud (e.g., Siri, Google Assistant).
Note: Refer to the quick start guide included with your product for precise button functions and combinations.
Wearing the Earphones
For optimal sound quality and comfort, ensure the earphones are properly seated in your ears. Gently insert each earbud into the corresponding ear canal (L for left, R for right) and twist slightly until a secure and comfortable fit is achieved. Experiment with different ear tip sizes if provided, to find the best seal for your ears.
Maintenance
Proper maintenance ensures the longevity and performance of your earphones.
- Cleaning: Regularly wipe the earphones and charging case with a soft, dry, lint-free cloth. For ear tips, remove them and clean with a damp cloth, then dry thoroughly before reattaching. Do not use harsh chemicals or abrasive materials.
- Storage: When not in use, store the earphones in their charging case to protect them from dust, dirt, and physical damage.
- Water Resistance: While IPX4 rated (sweat and splash resistant), do not submerge the earphones in water or expose them to heavy rain. Dry them thoroughly if they get wet.
- Battery Care: Avoid fully depleting the battery for extended periods. Charge regularly, even if not used frequently, to maintain battery health.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Only one earbud works or earbuds won't pair together. | Earbuds are not properly synced or paired individually to the device. Plastic film on contacts. |
|
| Earphones not charging. | Improper placement in case, dirty contacts, faulty cable/charger. |
|
| No sound or low volume. | Device volume too low, earphones not connected, ear tips not sealed. |
|
| Connection drops frequently. | Too far from device, interference, low battery. |
|
Specifications
| Brand | Monoprice |
| Model Number | 139161 |
| Connectivity Technology | Wireless (Bluetooth 5) |
| Form Factor | In-ear |
| Water Resistance Level | IPX4 (Sweat and Splash Resistant) |
| Battery Type | Lithium Polymer (included) |
| Continuous Listening Time | Up to 3.5 hours (earphones) |
| Wireless Range | Up to 32 feet (10 meters) |
| Product Dimensions | 10.92 x 9.91 x 4.32 cm |
| Item Weight | 150 g |
| Material | Metallo |
| Color | Black |
Warranty and Support
Monoprice products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service, please refer to the official Monoprice website or contact their customer service directly. Keep your proof of purchase for warranty claims.
Note: Warranty terms and conditions may vary by region and product.





