BMAD J18

Contents

J18 Wireless Headset Bluetooth 5.3 User Manual

Model: J18 | Brand: BMAD

1. Introduction

Thank you for choosing the J18 Wireless Headset. This manual provides essential information for setting up, operating, and maintaining your new Bluetooth earbuds. Please read it carefully to ensure optimal performance and longevity of your device.

The J18 Wireless Headset offers a premium audio experience with HiFi stereo sound, advanced noise-canceling technology, and a comfortable in-ear design. It features Bluetooth 5.3 for stable connectivity, touch controls for easy management, and an IPX4 waterproof rating, making it suitable for various activities including gaming and sports.

2. Package Contents

Ensure all items are present in your package:

  • 1 pair of J18 TWS Headphones
  • 1 Charging Box
  • 1 Type-C Charging Cable
  • 1 User Manual (including warranty card)

3. Specifications

Diagram showing product parameters and dimensions of the J18 Wireless Headset and its charging case.

Figure 1: Product Parameters and Dimensions

Technical Specifications
FeatureDetail
Headphone ModelJ18
Bluetooth Version5.3
Bluetooth Bands2.4GHz
Connection Distance≥10 meters
Headset Battery Capacity30mAh (per earbud)
Charging Case Battery Capacity250mAh
Working Hours (Playtime)Approx. 5 hours
Talk TimeApprox. 4 hours
Charging TimeApprox. 2 hours
Weight (Single Side Headset)3.8g
Impedance32Ω
Frequency Response20-20000Hz
Waterproof RatingIPX4
Input5V/100mA
Supported ProtocolsA2DP, AVRCP, HSP, HFP
Dynamic Coil Size14mm
Diagram showing the dimensions of the J18 charging case (45mm width, 55mm height) and an earbud (22mm width, 43mm height, 6.3mm thickness).

Figure 2: Physical Dimensions

4. Setup

4.1 Power On

Long press the On/Off button for 3 seconds. The indicator light will flash red and blue alternately, accompanied by a "Power On" voice prompt (English mode). This indicates the headset is powered on.

4.2 Bluetooth Connection (First Use)

  1. After the headset powers on, it will automatically enter Bluetooth pairing mode with the indicator flashing red and blue alternately.
  2. On your mobile device, go to Bluetooth settings and enable Bluetooth.
  3. Search for "G1" (or J18) in the list of available devices.
  4. Tap "G1" (or J18) to pair. Once connected, the blue light on the headset will flash slowly.

Video 1: Demonstration of J18 TWS Earbuds features including automatic connection, touch control, gaming low latency, and IPX4 waterproof rating.

4.3 Changing Paired Device & Reconnection

  • To connect to a new device, first disconnect the J18 from the currently paired device. The headset indicator will flash red and blue alternately, indicating it's ready for a new pairing.
  • The headset supports automatic reconnection. It will automatically reconnect to the last connected device after powering on, provided the device's Bluetooth is enabled.

4.4 Multi-Device Connection

The J18 supports connecting to multiple devices (one at a time, but remembers pairings):

  1. Pair and connect to the first device (e.g., Phone A).
  2. Turn off Bluetooth on the first device. The headset will re-enter pairing mode.
  3. On the second device (e.g., Phone B), search for "G1" (or J18) and pair.
  4. Turn on Bluetooth on the first device (Phone A). The headset will automatically reconnect to Phone A (or you can manually tap "G1"/J18 in Phone A's Bluetooth list to reconnect).

4.5 Language Switching

The default voice prompt language is English. In a disconnected state, double-click the power button to switch between Chinese and English voice prompts.

4.6 Power Off

Long press the On/Off button for 3 seconds. The headset will power off, accompanied by a "Power Off" voice prompt (English mode), and the indicator light will turn off.

5. Operating Instructions

Diagram illustrating touch controls for the J18 earbuds: Play/Pause, Answer/Hang up, Switch to previous/next song.

Figure 3: Touch Control Functions

5.1 Basic Controls

  • Power On/Off: Long press the On/Off button for 3 seconds.
  • Play/Pause: Short press the On/Off button.
  • Volume Down: Long press the "-" button for 1 second.
  • Volume Up: Long press the "+" button for 1 second.
  • Previous Song: Short press the "-" button.
  • Next Song: Short press the "+" button.
Woman demonstrating the touch control feature on the J18 earbud, with text explaining that advanced touch control prevents ear pain.

Figure 4: Touch Control in Use

5.2 Call Management

  • Answer Call: Short press the On/Off button when a call comes in.
  • Hang Up Call: Short press the On/Off button during a call.
  • Reject Call: Long press the On/Off button for 1.5 seconds when a call comes in.

5.3 TF Card Mode

  • Insert TF Card: The headset will automatically switch to TF card playback mode.
  • Remove TF Card: The headset will automatically switch back to Bluetooth mode.

6. Maintenance

6.1 Charging

When the battery level is below 10% or you hear a "low battery" prompt, it's time to charge your headset. Insert the Type-C charging cable into the charging port. The red indicator light will remain on, indicating that charging is in progress.

Important:

  • Please ensure the headset is dry when charging.
  • It is recommended to use a charging head with an output of 5V=2.1A or lower to charge the charging compartment normally.

6.2 Waterproofing

Green J18 earbuds and charging case with water droplets, illustrating IPX4 waterproof feature.

Figure 5: IPX4 Waterproof Feature

The J18 headset has an IPX4 waterproof rating, protecting it from splashes and sweat. This makes it suitable for workouts and light rain. However, it is not designed for submersion in water. Always ensure the headset is dry before charging.

7. Troubleshooting

Common Issues and Solutions
ProblemPossible Cause / Solution
Cannot Power OnEnsure the headset is fully charged. Check if the power button was pressed correctly (long press for 3 seconds). Charge the headset to activate it.
Cannot Connect BluetoothCheck if the headset is already connected to another device. Ensure the headset indicator is flashing red and blue alternately (pairing mode). Turn off and on your device's Bluetooth.
Cannot Reconnect AutomaticallyVerify that Bluetooth is properly enabled on your mobile device. Manually select "G1" (or J18) from your device's Bluetooth list.
Low Headphone VolumeIncrease the volume on both your mobile phone and the headset. Ensure the earbuds are worn correctly and securely in your ears.

8. User Tips

  • For the best sound quality and secure fit, try all included ear tip sizes to find the one that suits your ears best.
  • Regularly clean the earbuds and charging case with a soft, dry cloth to prevent dust and debris buildup.
  • To prolong battery life, fully charge the earbuds and case before first use and avoid completely draining the battery frequently.

9. Warranty & Support

Your J18 Wireless Headset comes with a product warranty. Please refer to the included warranty card for details regarding coverage and terms. Keep your purchase receipt and warranty card in a safe place.

For further assistance or detailed instructions, a comprehensive user manual in PDF format is available here.

© 2025 BMAD. All rights reserved.

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