Introduction
Thank you for choosing the Jectse Wireless Bluetooth Headphones. This manual provides detailed instructions to help you set up, operate, and maintain your headphones, ensuring optimal performance and longevity. Please read this manual thoroughly before using the product.

Image: Front view of the Jectse Wireless Bluetooth Headphones, showcasing their sleek design.
Product Features
- Smart Bluetooth Technology: Enjoy stable and reliable Bluetooth 5.0 connectivity for premium stereo sound, immersing you in your music.
- Comfortable and Exquisite Design: Designed for comfortable wear, offering excellent performance for calls and music on smartphones with exceptional sound quality.
- Soft Earpads: The soft earpad design ensures comfortable use, reducing discomfort during extended listening sessions.
- Multi-function Buttons: Convenient multi-button design allows for easy control of music playback, answering, and hanging up calls, enhancing user convenience.
- Built-in Microphone: Make clear, distortion-free calls anytime, anywhere, ensuring smooth communication.
- Foldable Design: The headphones feature a foldable structure for easy portability and storage.
- Memory Card Playback: Supports direct music playback from a memory card (card not included).

Image: A person comfortably wearing the Jectse Wireless Bluetooth Headphones, highlighting the ergonomic design.
Package Contents
Please check the package contents upon unboxing. If any items are missing or damaged, contact your retailer.
- 1 x Jectse Wireless Bluetooth Headphone
- 1 x USB Charging Cable
- 1 x English User Manual

Image: The Jectse Wireless Bluetooth Headphones shown alongside the included USB charging cable.
Setup Guide
1. Charging the Headphones
- Locate the USB charging port on the headphone.
- Connect the provided USB charging cable to the headphone's charging port.
- Connect the other end of the USB cable to a standard USB power adapter (not included) or a computer's USB port.
- The LED indicator light will illuminate during charging. Charging typically takes about 3 hours.
- Once fully charged, the LED indicator light will typically turn off or change color.
2. Powering On/Off
- To Power On: Press and hold the "ON/OFF" button until the LED indicator light flashes.
- To Power Off: Press and hold the "ON/OFF" button again until the LED indicator light turns off.
3. Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the "ON/OFF" button for approximately 5-7 seconds until the LED indicator light flashes red and blue alternately, indicating pairing mode.
- On your smartphone or Bluetooth-enabled device, enable Bluetooth and search for available devices.
- Select "Jectse Headphones" (or similar name) from the list of found devices.
- Once paired, the LED indicator light will typically flash blue slowly or remain solid blue.
4. Memory Card Playback
- Insert a compatible memory card (e.g., microSD) into the memory card slot on the headphone.
- The headphones should automatically switch to memory card playback mode. If not, use the "M/EQ" button to cycle through modes.

Image: A detailed diagram of the headphone's controls, including the ON/OFF switch, volume buttons, track controls, memory card slot, USB charging port, and microphone.
Operating Instructions
Music Playback
- Play/Pause: Press the Play/Pause button (often marked with a triangle/two vertical bars) to start or pause music.
- Next Song: Press the Next Song button (often marked with ≫|) to skip to the next track.
- Previous Song: Press the Previous Song button (often marked with |≪) to go to the previous track.
- Volume Up: Press and hold the Volume Up button (often marked with V+ or +) to increase volume.
- Volume Down: Press and hold the Volume Down button (often marked with V- or -) to decrease volume.
Call Management
- Answer Call: When an incoming call rings, press the Answer/Hang Up button (often the Play/Pause button) once to answer.
- End Call: During a call, press the Answer/Hang Up button once to end the call.
- Reject Call: When an incoming call rings, press and hold the Answer/Hang Up button for 2 seconds to reject the call.
- Redial Last Number: Double-press the Answer/Hang Up button to redial the last dialed number.
Mode Switching (M/EQ Button)
- Press the M/EQ button to cycle through available modes, such as Bluetooth mode, Memory Card mode, and potentially FM radio mode (if supported by your specific model).

Image: A close-up view of the control panel on the headphone earcup, showing the ON/OFF switch, volume/track buttons, and the M/EQ button.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the headphones. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the headphones in a cool, dry place, away from direct sunlight and extreme temperatures. The foldable design allows for compact storage.
- Water Exposure: These headphones are not waterproof. Avoid exposure to water or excessive moisture.
- Charging: Charge the headphones regularly, even if not used frequently, to maintain battery health.

Image: The Jectse Wireless Bluetooth Headphones shown both unfolded for use and folded for compact storage, demonstrating their portability.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones do not power on. | Low battery. | Charge the headphones for at least 3 hours. |
| Cannot pair with device. | Headphones not in pairing mode; Bluetooth off on device; device too far. | Ensure headphones are in pairing mode (flashing red/blue). Turn on Bluetooth on your device. Keep devices within 10 meters. |
| No sound or low volume. | Volume too low on headphones or device; incorrect audio source; connection issue. | Increase volume on both headphones and connected device. Ensure the correct audio output is selected on your device. Re-pair the headphones. |
| Volume buttons not working. | Temporary software glitch; specific mode limitation. | Try restarting the headphones. Ensure you are pressing and holding the volume buttons, not just tapping them. If the issue persists, adjust volume directly on the connected device. |
| Memory card not playing. | Card not inserted correctly; unsupported file format; headphones not in memory card mode. | Reinsert the memory card. Ensure music files are in a supported format (e.g., MP3). Press the M/EQ button to switch to memory card mode. |
Specifications
| Model Name | Jectsei4yu1whg9b |
| Bluetooth Version | 5.0 |
| Supported BT Modes | A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5 |
| Frequency Range | 2.402 to 2.480GHz, 2.4G ISM band |
| RF Performance | Receiving Sensitivity -84dBm; Transmitting Power ≤4dBm |
| Frequency Response | 20 Hz to 20 KHz |
| Signal-to-Noise Ratio (SNR) | 95 dB |
| Total Harmonic Distortion (THD) | 0.1% |
| Battery Type | Rechargeable Lithium Battery (Integrated) |
| Battery Capacity | 400 mAh |
| Normal Charging Time | Approximately 3 hours |
| Operating Temperature | -20 ℃ to 55 ℃ |
| Memory Card Support | Yes (Card not included) |
| Dimensions (Package) | 18 x 13 x 9 cm |
| Product Weight | 500 g |
Warranty and Support
For warranty information, technical support, or customer service inquiries, please refer to the documentation provided with your purchase or contact your retailer. You may also visit the official Jectse website for further assistance.
Manufacturer: Jectse
Model: Jectsei4yu1whg9b