ACEFAST K4 Go Waterproof Portable Bluetooth Speaker

The ACEFAST K4 Go Waterproof Portable Bluetooth Speaker delivers clear, full-range sound in a compact, rugged design. Perfect for outdoor adventures or home use, it keeps your music playing with reliable Bluetooth connectivity and durable, waterproof construction.

Compact, Durable Sound for Every Adventure

• Waterproof IPX7 Rating: Enjoy music worry-free near water, rain, or pools without damage.
• Full-Range Audio: 45 × 45 mm speaker unit produces clear sound across lows, mids, and highs for immersive listening.
• Bluetooth 5.4 Connectivity: Ensures stable wireless connection up to 32.8 ft (10 m) for effortless pairing with devices.
• Long Playback Time: Up to 8 hours of continuous music on a single 900 mAh charge for extended enjoyment.
• Compact and Lightweight: Measures just 3.94 × 1.57 × 3.07 in (100 × 40 × 78 mm) and weighs 0.44 lbs (200 g), easy to carry anywhere.

Portable Speaker That Keeps Up with Your Lifestyle

Designed for mobility, the K4 Go fits in backpacks, bags, or even your hand, making it perfect for trips, workouts, or casual listening. Its IPX7 waterproof rating ensures you can use it by the pool or in light rain without concern.

The full-range 45 × 45 mm speaker delivers 5 W of output, balancing bass and treble for crisp, natural sound. SBC and AAC codec support enhances audio quality across compatible devices.

With Bluetooth 5.4, pairing is fast and reliable, and the wireless range of 32.8 ft (10 m) allows freedom of movement without interruption. USB charging fully powers the 900 mAh battery in just 1.5 hours.

Its sturdy plastic and mesh construction ensures durability while remaining lightweight, combining portability with resilience for everyday adventures.

Reliable Sound Anytime, Anywhere

The ACEFAST K4 Go speaker offers compact, waterproof, and high-quality audio, making it an ideal companion for outdoor activities or home enjoyment. It’s a versatile speaker built for convenience, durability, and continuous entertainment.

Technical Specifications