ACEFAST AceFit Pro

ACEFAST AceFit Pro Open-Ear Headphones Instruction Manual

Model: AceFit Pro

1. Introduction

Thank you for choosing the ACEFAST AceFit Pro Open-Ear Headphones. These headphones are designed for comfort, high-quality audio, and enhanced safety during activities. Featuring a unique open-ear design, powerful bass, and a night safety mode, they are ideal for sports, workouts, and daily use.

2. What's in the Box

  • Acefit Pro Open-ear Earbuds x2
  • Acefit Pro Charging Case x1
  • USB-C Charging Cable x1
  • User Manual x1
Contents of the AceFit Pro box including earbuds, charging case, and cables.

Image: The AceFit Pro packaging displaying the earbuds, charging case, USB-C cable, and user manual.

3. Setup and Pairing

3.1 Initial Charge

Before first use, place the earbuds into the charging case and connect the case to a power source using the provided USB-C cable. The LED display on the charging case will indicate the battery level.

3.2 Pairing with a Mobile Device

  1. Open the charging case. The earbuds will automatically enter pairing mode.
  2. On your mobile device, go to Bluetooth settings and turn on Bluetooth.
  3. Select "ACEFAST ACEFIT Pro" from the list of available devices to connect.
  4. Once connected, the earbuds are ready for use.

3.3 Pairing with a PC/Tablet

To connect your AceFit Pro headphones to a PC or tablet, follow these steps. If prompted for a PIN code, refer to your device's manual or try '0000'.

Video: Demonstrates how to connect ACEFAST AceFit Pro headphones to a PC or tablet, including steps for Bluetooth pairing and handling PIN code prompts.

3.4 Multi-Device Pairing

The AceFit Pro allows effortless switching between two connected devices, such as a laptop and a smartphone, for seamless multitasking.

AceFit Pro headphones connected to a smartphone and a tablet, demonstrating multi-device pairing.

Image: The AceFit Pro headphones are shown connected to both a smartphone and a tablet, illustrating their multi-device pairing capability.

4. Operating Instructions

4.1 Wearing the Earbuds

The AceFit Pro features an ultra-comfortable open-ear design with flexible ear hooks. Gently place the earbud over your ear, ensuring the speaker rests comfortably near your ear canal without entering it. The 0.7mm nickel-titanium memory wire ear hooks adapt to various ear shapes, including those wearing glasses.

Person wearing AceFit Pro open-ear headphones, highlighting the comfortable fit.

Image: A close-up of a person wearing the AceFit Pro headphones, demonstrating their ergonomic and lightweight design.

4.2 Touch Controls

The AceFit Pro earbuds feature intuitive touch controls for managing playback, calls, and voice assistant activation.

  • Single Tap: Volume up/down
  • Double Tap: Play/Pause, Answer/Hang up call
  • Triple Tap: Previous/Next song
  • Long Touch (2s): Reject call, Wake up voice assistant

Video: A demonstration of the ACEFAST Pro's gesture control features, showing how to use taps and long presses for various functions.

4.3 ACEFAST App Integration

Download the ACEFAST app to unlock advanced features, including monitoring battery life, choosing sound modes, customizing EQ settings, and tailoring earphone controls to your preference.

Smartphone screen showing the ACEFAST app interface for controlling headphone settings.

Image: The ACEFAST app interface on a smartphone, illustrating options for sound modes, EQ customization, and gesture settings.

4.4 Night Safety Mode

For enhanced visibility during nighttime activities, the earbuds feature 40 high-brightness 3D floating LED lights, visible from over 10 meters. This mode can be activated or customized via the ACEFAST app.

Video: Shows the ACEFAST AceFit Pro headphones in use during nighttime activities, highlighting the increased visibility provided by the LED lights for safety.

5. Audio Technology

The AceFit Pro redefines open-ear audio with its Luxshare-ICT engineered 3-magnet super-linear speaker. This advanced technology delivers powerful, deep bass, crystal-clear highs, and an immersive sound experience.

Video: A technical comparison demonstrating the superior sound quality of the AceFit Pro's 3-magnet super-linear speaker versus a normal speaker.

Diagram illustrating the 3-magnet super-linear speaker technology in AceFit Pro headphones.

Image: An exploded view diagram of the 3-magnet super-linear speaker, highlighting its components and advanced design for superior audio.

6. Battery and Charging

  • Total Playtime: Up to 30 hours with the charging case.
  • Quick Charge: 5-minute charge provides 2 hours of playtime.
  • Charging Case Battery Capacity: 500 mAh
  • Charging Case Charging Time: Approximately 2 hours
AceFit Pro charging case with LED display showing battery life and quick charge feature.

Image: The transparent charging case with its built-in LED display, indicating battery status and highlighting the 30-hour battery life and 5-minute quick charge feature.

7. Maintenance and Care

  • Cleaning: Use a soft, dry cloth to clean the earbuds and charging case. Avoid using abrasive materials or harsh chemicals.
  • Water Resistance: The earbuds are IP54 water-resistant, protecting against splashes and sweat. Do not submerge them in water.
  • Storage: Store the earbuds in their charging case when not in use to protect them and maintain battery life.

8. Troubleshooting

  • No Sound/Connectivity Issues: Ensure earbuds are charged and within Bluetooth range. Try unpairing and re-pairing the earbuds with your device.
  • Earbuds Not Charging: Check the USB-C cable and power source. Ensure the charging contacts on the earbuds and case are clean and free of debris.
  • App Not Connecting: Ensure Bluetooth is enabled and the earbuds are paired. Restart the app or your mobile device.

9. Specifications

BrandACEFAST
Model NameAceFit Pro
Ear PlacementOpen Ear
Connectivity TechnologyWireless (Bluetooth 5.4)
Water Resistance LevelIP54
Battery Average Life30 Hours (with charging case)
Quick Charge5 minutes for 2 hours playtime
Control TypeApp Control, Touch
Audio Driver TypeDynamic Driver (3-magnet super-linear speaker)
Audio Driver Size20 Millimeters
Weight (each earbud)7.8g

10. Warranty and Support

The ACEFAST AceFit Pro Open-Ear Headphones come with a 2-year manufacturer warranty. For support, please visit the official ACEFAST website or contact customer service through your retailer.

© 2026 ACEFAST. All rights reserved.

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