Enjoy clear, high-quality sound with the ACEFAST W4 true wireless earbuds, featuring Bluetooth 5.4 and environmental noise cancellation for crystal-clear calls. These lightweight earbuds offer up to 7 hours of playback and include a convenient charging case that also serves as a phone holder. With fast charging and splash-resistant design, they're perfect for active lifestyles and on-the-go use.

General Information

• Brand Name: ACEFAST
• Model: W4
• Material: ABS + Silica Gel + PC
• Total Weight: 37.6 g (1.33 oz)

Audio Features

• Vocalism Principle: Dynamic
• Driver Diameter: 10 mm (0.39 in)
• Frequency Response Range: 20 – 20,000 Hz
• Impedance: Up to 32 Ω
• Sensitivity: 117 dB
• Number of Drivers: 2
• Microphone: Yes

Connectivity

• Bluetooth Version: 5.4
• Wireless Range: <10 m (<32.8 ft)
• Connector Type: Type-C

Battery & Charging

• Battery Capacity: Earbuds: 40 mAh each / Charging Case: 350 mAh
• Music Playback Time: Up to 7 hours
• Talk Time: Up to 4 hours
• Fast Charging: 10 minutes charge provides 2 hours of use
• Charging Method: Charging case (with built-in phone holder)

Durability & Special Features

• Waterproof Rating: IPX4 (splash-resistant)
• Special Feature: Charging case doubles as a phone holder

Package Contents

• 1 × Charging Case
• 1 × User Manual