1. Product Overview
The ELECOM LBT-TWS17BK are compact and lightweight semi-open type Bluetooth 5.3 completely wireless stereo headphones. Designed for comfort and portability, they feature touch controls and support SBC/AAC codecs for clear audio. The unique round charging case is slim and easy to carry, fitting discreetly in pockets or small bags.
Figure 1: ELECOM LBT-TWS17BK Wireless Earphones and Charging Case. The earphones are shown in black, resting in their open charging case.
These earphones are engineered to minimize ear pressure while allowing ambient sounds to be heard, making them suitable for users who prefer not to have a sealed ear canal. Each earbud weighs approximately 3.3g, providing an ultra-lightweight and comfortable fit thanks to their ergonomic design.
Figure 2: A man wearing the ELECOM LBT-TWS17BK earbud, demonstrating its comfortable and discreet fit. The image highlights the ergonomic design and lightweight nature of the earbud.
2. Specifications
| Feature | Detail |
|---|---|
| Communication Method | Bluetooth Standard Version 5.3 |
| Output | Bluetooth Power Class 2 |
| Maximum Communication Distance | Approx. 10m (without obstacles) |
| Frequency Band | 2.4GHz band |
| Modulation Method | FHSS (Frequency Hopping Spread Spectrum) |
| Supported Bluetooth Profiles | A2DP, AVRCP, HFP |
| A2DP Supported Codecs | SBC, AAC |
| A2DP Content Protection | SCMS-T |
| Maximum Registered Devices | 8 devices |
| Continuous Playback Time | Approx. 5.5 hours (Approx. 22 hours with charging case) |
| Continuous Standby Time | Max. approx. 40 hours |
| Power Supply | Rechargeable Lithium-ion battery |
| Rated Voltage | DC5V |
| Charging Time | Headphones: Approx. 1.5 hours, Charging Case: Approx. 2 hours |
| Microphone Type | MEMS type |
| External Dimensions (Headphones) | Approx. 18mm × 18mm × 31mm (per ear) |
| External Dimensions (Charging Case) | Approx. 56mm × 22mm × 55mm |
| Weight (Headphones) | Approx. 3.3g (per ear) |
| Weight (Charging Case) | Approx. 28g |
| Color | Black |
| Driver Unit | φ14.2mm full-range dynamic driver |
| Included Accessories | Charging case, USB charging cable (USB-A to USB Type-C™) |
3. Setup
3.1 Charging the Earphones and Case
Before first use, fully charge the earphones and the charging case.
- Place both earphones into the charging case. Ensure they are correctly seated.
- Connect the supplied USB-A to USB Type-C™ charging cable to the charging port on the case.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The LED indicator on the charging case will show the charging status. A full charge for the case takes approximately 2 hours, and for the earphones, approximately 1.5 hours.
Figure 3: The charging case connected to a USB Type-C cable, illustrating the charging process. The image also shows the LED indicator for battery level.
3.2 Initial Pairing with a Device
After initial registration, the earphones will automatically pair with your device when removed from the case.
- Ensure the earphones are charged and placed in the charging case.
- Open the charging case. The earphones will automatically enter pairing mode.
- On your smartphone, tablet, or other Bluetooth-enabled device, go to the Bluetooth settings.
- Search for available devices and select "LBT-TWS17" (or similar name) from the list.
- Once connected, a confirmation sound or message may be heard.
Figure 4: A hand removing an earbud from the charging case, demonstrating the automatic pairing feature with a smartphone in the background.
4. Operating Instructions
4.1 Touch Controls
The earphones feature touch sensors for various functions. Operations are performed by tapping the outer surface of the earbuds.
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Volume Up: Triple tap on the right earbud.
- Volume Down: Triple tap on the left earbud.
- Answer/End Call: Single tap on either earbud during an incoming call or active call.
- Reject Call: Press and hold either earbud for 2 seconds during an incoming call.
- Activate Voice Assistant (Siri/Google Assistant): Press and hold either earbud for 3 seconds.
Figure 5: A person demonstrating the touch control functionality on the earbud. The touch sensor allows for seamless operation without needing to press buttons.
4.2 Single Earbud Use
Both earphones can be used independently. If you wish to use only one earbud, simply take one out of the case and leave the other in the case or turn it off. The microphone for calls and voice AI will be active on the earbud currently in use.
5. Maintenance
To ensure the longevity and optimal performance of your earphones, follow these maintenance guidelines:
- Cleaning: Gently wipe the earphones and charging case with a soft, dry cloth. Do not use abrasive cleaners, alcohol, or solvents.
- Storage: When not in use, store the earphones in their charging case to protect them from dust and damage.
- Avoid Moisture: Keep the earphones and charging case away from water, humidity, and extreme temperatures.
- Charging: Charge the device regularly, even if not in frequent use, to maintain battery health.
6. Troubleshooting
If you encounter issues with your ELECOM LBT-TWS17BK earphones, refer to the following common solutions:
| Problem | Possible Cause / Solution |
|---|---|
| No sound or intermittent sound from one or both earbuds. |
|
| Earphones do not pair with device. |
|
| Low volume or poor sound quality. |
|
| Charging case not charging. |
|
7. Warranty and Support
The ELECOM LBT-TWS17BK earphones come with a 1-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For technical support, warranty claims, or further assistance, please contact ELECOM customer service through their official website or the retailer where you purchased the product. Please have your proof of purchase and product model number (LBT-TWS17BK) ready when contacting support.
For more information, visit the official ELECOM website: www.elecom.co.jp
