Siindoo JH-923 Wireless Headphones User Manual

Introduction

Thank you for choosing the Siindoo JH-923 Wireless Headphones. These over-ear headphones are designed to provide a superior audio experience with extended playtime, multiple sound modes, and comfortable wear. This manual will guide you through the setup, operation, and maintenance of your new headphones.

What's in the Box?

• Siindoo JH-923 Wireless Headphones
• 0.5m Type-C charging cable
• 1.2m AUX cable
• User Manual

Image: All items included in the Siindoo JH-923 headphone package.

Key Features

Superior Audio Performance

• 40mm Dynamic Drivers: Equipped with advanced dual 40mm dynamic sounding units for powerful and clear audio.
• 3 EQ Sound Modes: Easily switch between Balance, Bass, and Treble modes to customize your listening experience for different music genres.
• Hi-Fi Stereo Audio: Delivers rich, immersive sound with deep bass.

Image: Close-up of the 40mm drivers and the EQ mode button on the headphones.

Extended Battery Life

• Up to 65 Hours Playtime: Enjoy prolonged music playback on a single charge.
• Quick Charge: A 5-minute charge provides up to 3 hours of playtime.
• 600mAh Battery Capacity: Ensures long-lasting performance.

Image: Visual representation of the extended battery life and quick charge feature.

Advanced Connectivity

• Bluetooth 5.3: Ensures fast pairing, stable connection, and efficient power consumption.
• Dual Device Connection: Connect to two devices simultaneously and switch between them seamlessly.
• Built-in Microphone: Provides clear, hands-free calling.
• Wired Option: Includes a 3.5mm audio cable for wired listening when the battery is low or for non-Bluetooth devices.

Image: Woman wearing the headphones, illustrating Bluetooth connectivity and features.

Comfort and Design

• Passive Noise Cancellation: Full-surround earcups isolate up to 95% of outside living noise.
• Memory Foam Ear Cups: Soft, skin-textured earcups provide long-term comfort.
• Adjustable Metal Slider Headband: Ensures a secure and personalized fit for various head shapes.
• Foldable Design: Lightweight and compact for easy storage and portability.

Image: Diagram illustrating the comfortable and foldable design elements.

Image: People using the headphones in various environments, demonstrating noise isolation capabilities.

Setup Guide

Charging the Headphones

Before first use, fully charge your headphones. The charging time is approximately 2.5 hours.

1. Connect the included Type-C charging cable to the charging port on the headphones.
2. Connect the other end of the USB cable to a USB power adapter (not included) or a computer's USB port.
3. The LED indicator will show charging status (refer to the specific light behavior in your quick start guide if available). It will typically turn off or change color once fully charged.

Bluetooth Pairing

Pair your headphones with your device for wireless listening.

1. Ensure the headphones are turned off.
2. Press and hold the Power button until the LED indicator flashes rapidly (usually blue and red), indicating pairing mode.
3. On your device (smartphone, tablet, PC), enable Bluetooth and search for available devices.
4. Select "JH-923" from the list of found devices.
5. Once connected, the LED indicator will typically show a solid blue light or flash slowly.
6. The headphones support dual device connection. After connecting to the first device, disable Bluetooth on it, then pair with the second device. Re-enable Bluetooth on the first device, and the headphones should connect to both.

Wired Connection (AUX Mode)

Use the included 3.5mm AUX cable for a wired connection, which is useful when the battery is depleted or for devices without Bluetooth.

1. Plug one end of the 3.5mm AUX cable into the audio jack on the headphones.
2. Plug the other end into the 3.5mm audio output of your device.
3. The headphones will automatically switch to wired mode.

Operating Instructions

Power On/Off

• Power On: Press and hold the Power button for approximately 3 seconds until the LED indicator lights up.
• Power Off: Press and hold the Power button for approximately 3-5 seconds until the LED indicator turns off.

Music Playback

• Play/Pause: Press the Multi-function button (often the Power button or a dedicated play/pause button) once.
• Volume Up: Press the Volume Up (+) button.
• Volume Down: Press the Volume Down (-) button.
• Next Track: Press and hold the Volume Up (+) button.
• Previous Track: Press and hold the Volume Down (-) button.

EQ Mode Switching

The headphones feature three EQ modes: Balance, Bass, and Treble. Press the EQ button (often labeled 'EQ' or integrated with another button) to cycle through the modes.

Call Management

• Answer/End Call: Press the Multi-function button once.
• Reject Call: Press and hold the Multi-function button for 2 seconds.
• Redial Last Number: Double-press the Multi-function button.

Maintenance

Proper care will extend the life of your Siindoo JH-923 headphones.

• 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. Utilize the foldable design to minimize space and protect them from damage.
• Avoid Extreme Conditions: Do not expose the headphones to extreme temperatures, humidity, or direct sunlight.
• Water Resistance: These headphones are not waterproof. Avoid contact with liquids.

Troubleshooting

If you encounter issues with your headphones, try the following solutions:

Specifications

Official Product Video

Warranty and Support

For warranty information and customer support, please refer to the contact details provided on the product packaging or visit the official Siindoo website. Keep your purchase receipt for any warranty claims.

If you have any questions or require further assistance, please do not hesitate to contact Siindoo customer service.