B90 Wrist Wireless Bluetooth Audio Watch Instruction Manual

1. Introduction

Thank you for purchasing the B90 Wrist Wireless Bluetooth Audio Watch. This innovative device combines a portable Bluetooth speaker with a wearable wristband, offering hands-free calling, music playback from various sources, FM radio, and an alarm clock function. Designed for convenience and versatility, it's an ideal companion for outdoor activities, home use, or on-the-go entertainment.

Image: Two B90 wrist Bluetooth speakers, black and blue variants.

2. Package Contents

Please check the package for the following items:

• 1 x B90 Wrist Wireless Bluetooth Audio Watch
• 1 x USB Charging Cable
• 1 x User Manual (this document)

3. Product Overview

Familiarize yourself with the device's components and controls:

Image: Side view of the B90 wrist Bluetooth speaker, highlighting control buttons and charging port.

• Speaker Grille: Front-facing audio output.
• Display: Digital display for time, mode, and status indicators.
• Control Buttons: (Typically located on the side) Power On/Off, Volume Up/Next Track, Volume Down/Previous Track, Mode Switch, Play/Pause/Answer Call.
• USB Charging Port: For charging the device.
• TF Card Slot: For inserting a MicroSD (TF) card for local music playback.
• Wristband: Adjustable band for comfortable wear.

4. Specifications

5. Setup Guide

5.1 Charging the Device

Before first use, fully charge the B90. Connect the provided USB charging cable to the device's USB port and plug the other end into a standard USB power adapter (not included) or a computer's USB port. The display will indicate charging status.

5.2 Power On/Off

• Power On: Press and hold the Power button for a few seconds until the display lights up and you hear a power-on prompt.
• Power Off: Press and hold the Power button again for a few seconds until the display turns off and you hear a power-off prompt.

5.3 Bluetooth Pairing

1. Ensure the B90 is powered on and in Bluetooth mode (indicated on the display, or switch modes using the Mode button).
2. On your smartphone or other Bluetooth-enabled device, enable Bluetooth and search for available devices.
3. Select "B90" from the list of found devices.
4. Once paired, the device will confirm with an audio prompt, and the display may show a Bluetooth icon.

5.4 TF Card Insertion

To play music directly from a memory card:

1. Locate the TF card slot on the side of the device.
2. Gently insert a MicroSD (TF) card with pre-loaded MP3 files into the slot until it clicks into place.
3. The device will automatically switch to TF card mode or you can manually select it using the Mode button.

Video: Demonstrates water resistance, hands-free calling, alarm, TF card, and FM radio functions.

6. Operating Instructions

6.1 Mode Switching

Press the Mode button to cycle through available modes: Bluetooth, TF Card, FM Radio.

6.2 Music Playback

• Play/Pause: Press the Play/Pause button.
• Next Track: Short press the Volume Up button.
• Previous Track: Short press the Volume Down button.
• Volume Adjustment: Long press the Volume Up or Volume Down button.

6.3 Hands-free Calling

When connected via Bluetooth to your smartphone:

• Answer Call: Press the Play/Pause button when an incoming call rings.
• End Call: Press the Play/Pause button during a call.
• Reject Call: Long press the Play/Pause button when an incoming call rings.

6.4 FM Radio

In FM Radio mode:

• Auto-scan: Long press the Play/Pause button to automatically scan and save available FM stations.
• Switch Stations: Short press the Volume Up/Down buttons to navigate through saved stations.

6.5 Alarm Clock

The B90 features an alarm clock function. Refer to the device's on-screen interface and control buttons for specific instructions on setting the time and alarm. The alarm typically uses a standard signal sound.

6.6 Self-timer Function

The device supports a self-timer function, likely for remote camera control when connected to a smartphone. Specific operation may vary depending on your phone's camera app and settings. Typically, this involves pairing the device and using a designated button on the B90 to trigger the camera shutter.

7. Maintenance

7.1 Cleaning

Wipe the device with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners. Ensure the charging port and TF card slot are free from dust and debris.

7.2 Water Resistance (IPX4)

The B90 is rated IPX4, meaning it is resistant to splashing water from any direction. This makes it suitable for use in light rain or during sweaty workouts. However, it is NOT designed for immersion in water. Do not submerge the device or expose it to pressurized water streams.

7.3 Storage

Store the device in a cool, dry place away from direct sunlight and extreme temperatures. If storing for an extended period, charge the battery periodically to maintain its health.

8. Troubleshooting

• Device won't turn on: Ensure the battery is charged. Connect to a power source and try again.
• Cannot pair via Bluetooth: Make sure the device is in Bluetooth mode and within 10 meters of your phone. Turn Bluetooth off and on again on both devices.
• No sound: Check the volume level on both the B90 and your connected device. Ensure the correct mode (Bluetooth/TF Card) is selected.
• Alarm sound: The alarm function typically uses a standard signal sound. It is generally not possible to set custom MP3 sounds for the alarm.
• TF card not recognized: Ensure the TF card is inserted correctly and contains compatible audio files (e.g., MP3). Try reinserting the card or using a different card.

9. User Tips

• For optimal sound quality, ensure the speaker grille is not obstructed.
• Keep the device charged to avoid interruptions during use, especially for longer outdoor activities.
• While the device is splash-proof (IPX4), always exercise caution around water to prevent damage.

10. Warranty and Support

For any issues or questions not covered in this manual, please contact the seller or manufacturer's customer support for assistance. Keep your purchase receipt as proof of purchase for warranty claims.