Introduction
Thank you for choosing the FORALL U35 Hybrid Active Noise Cancelling Headphones. This manual provides essential information for setting up, operating, and maintaining your headphones to ensure optimal performance and longevity. Please read this manual thoroughly before using the product.
Image: The FORALL U35 headphones, showcasing their sleek black design.
Image: User wearing FORALL U35 headphones in a commuting environment.
Package Contents
Ensure all items are present in the package:
- FORALL U35 Hybrid Active Noise Cancelling Headphones
- USB-C Charging Cable
- 3.5mm Audio Cable
- User Manual (this document)
Image: The product packaging box, detailing specifications and contents.
Product Overview
Familiarize yourself with the headphone's components and controls.
Image: Detailed diagram of headphone controls and interfaces.
Controls and Ports:
- Power On/Off Switch: Located on the right earcup, used to power the headphones on or off.
- Volume + / - Buttons: Adjust audio volume. Also used for track navigation (long press).
- ANC Switch: Activates or deactivates Active Noise Cancellation.
- EQ Switch: Cycles through the three available Equalizer modes.
- LED Indicator Light: Displays power, charging, and connection status.
- USB-C Charge Interface: For charging the headphones.
- AUX Interface (3.5mm Jack): For wired audio connection.
- Internal/External Microphones: Used for noise cancellation and voice calls.
Image: Illustration of the internal and external microphones for Hybrid Active Noise Cancellation.
Setup
1. Charging the Headphones
Before first use, fully charge your headphones. Connect the provided USB-C charging cable to the headphone's USB-C port and the other end to a USB power source (e.g., computer, wall adapter). The LED indicator will show charging status and turn off or change color when fully charged.
- Charging Time: Approximately 1-2 hours for a full charge.
- Battery Life: Up to 60 hours with ANC off, up to 45 hours with ANC on.
Image: Visual representation of the headphone's extended battery life.
2. Bluetooth Pairing
- Power On: Slide the Power On/Off Switch to the "ON" position. The LED indicator will flash, indicating pairing mode.
- Activate Bluetooth: On your device (smartphone, tablet, laptop), enable Bluetooth.
- Select Device: In your device's Bluetooth settings, search for "U35" and select it to connect.
- Confirmation: The LED indicator on the headphones will stop flashing and remain solid, and you may hear an audio prompt confirming successful connection.
The headphones will automatically attempt to reconnect to the last paired device when powered on.
3. Wired Connection (AUX Mode)
To use the headphones with a wired connection, plug one end of the 3.5mm audio cable into the AUX interface on the headphones and the other end into your audio source's 3.5mm jack. Bluetooth functionality will be disabled when the audio cable is connected.
Operating Instructions
Power On/Off
- Power On: Slide the Power On/Off Switch to "ON".
- Power Off: Slide the Power On/Off Switch to "OFF".
Active Noise Cancellation (ANC)
The FORALL U35 features Hybrid Active Noise Cancellation, reducing low-frequency ambient sounds by up to 90%.
- Activate ANC: Slide the ANC Switch to the "ON" position.
- Deactivate ANC: Slide the ANC Switch to the "OFF" position.
ANC can be used independently, even when the headphones are not connected via Bluetooth or are powered off (in wired mode).
EQ Modes
Cycle through three distinct Equalizer modes to optimize your audio experience.
- Change EQ Mode: Press the EQ Switch to cycle between modes (e.g., Bass Boost, Treble Boost, Balanced).
Image: Illustration of the headphone's internal structure, emphasizing Hi-Res Audio components.
Volume Control and Track Navigation
- Increase Volume: Short press the "Volume +" button.
- Decrease Volume: Short press the "Volume -" button.
- Next Track: Long press the "Volume +" button.
- Previous Track: Long press the "Volume -" button.
Call Management
When connected to a smartphone via Bluetooth:
- Answer/End Call: Short press the Power On/Off button.
- Reject Call: Long press the Power On/Off button.
Maintenance
Cleaning
- Wipe the headphones with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, solvents, or spray cleaners.
- Avoid getting moisture into any openings.
Storage
- Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures.
- When not in use for extended periods, charge the headphones periodically to maintain battery health.
- The headphones feature a foldable design for compact storage.
Image: Features highlighting the comfortable and portable design of the headphones.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones do not power on. | Low battery. | Charge the headphones fully. |
| Cannot pair via Bluetooth. | Bluetooth not enabled on device; headphones not in pairing mode; too far from device. | Ensure Bluetooth is on and headphones are in pairing mode. Move closer to the device (within 10m). Try restarting both devices. |
| No sound or low volume. | Volume too low; incorrect audio source; wired cable connected. | Increase volume on headphones and device. Check audio source. Disconnect 3.5mm cable for Bluetooth audio. |
| ANC not working effectively. | ANC switch off; type of noise. | Ensure ANC switch is "ON". ANC is most effective for low-frequency, constant noises. |
| Sound distortion. | Bluetooth interference; volume too high. | Move away from sources of interference. Lower volume. |
Specifications
| Feature | Detail |
|---|---|
| Model | U35 (BN903A) |
| Noise Control | Hybrid Active Noise Cancellation |
| Connectivity Technology | Bluetooth 5.2, 3.5 mm Jack |
| Operation Range | Up to 10 meters (33 feet) |
| Battery Life (ANC On) | Up to 45 Hours |
| Battery Life (ANC Off) | Up to 60 Hours |
| Rapid Charge Time | 1-2 Hours |
| Battery Capacity | 3.7V 800mAh Lithium Ion |
| Charging Port | USB-C |
| Speaker Size | 40mm |
| Impedance | 32 Ohm |
| Ear Placement | Over Ear |
| Material | Plastic |
| Weight | 0.51 Milligrams (Note: This value may be a typographical error in the source data.) |
| Special Features | Foldable Design, 3 EQ Modes |
Warranty and Support
FORALL products are designed and manufactured to the highest quality standards. For warranty information, technical support, or customer service inquiries, please refer to the contact information provided with your purchase or visit the official FORALL website.
Please retain your proof of purchase for warranty claims.
