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Fusion StereoActive

Portable, Rugged Water-resistant Marine Stereo System

  • Engineered for adventure with rugged, water-resistant floating product design
  • 40 W speaker system with class-D amplifier, digital signal processing and passive bass radiator that delivers incredible full-range sound
  • Music sources include Bluetooth® audio streaming, AM/FM radio tuner, USB playback and weather band
  • Power bank charging for your smart devices via the USB port for when your adventure takes you miles away from a charge
  • Wireless control from your Garmin smartwatch or smartphone via the FUSION-Link™ Lite app
  • 20-hour battery life at regular listening conditions

The award-winning StereoActive marine system combines world-class industrial design, high-quality music reproduction, intelligent functionality and an extensive feature set that has resulted in a rugged, portable stereo that’s prepared for anything. StereoActive is designed for the challenge of life on the water and engineered to deliver crystal-clear audio that enhances any activity. With an extensive range of music sources — including AM/FM radio tuner, Weatherband Bluetooth wireless technology and USB MP3 playback — let StereoActive provide the soundtrack to your next adventure.

Engineered for a Life of Adventure

StereoActive is a portable, rugged floating marine stereo system (water-rated to IPX7) that is engineered for a life of adventure. Whether you’re boating, paddle boarding, camping or around the pool, the StereoActive system is made to be used 365 days a year and is prepared for anything.

The Music Possibilities Are Endless

Stream audio via Bluetooth from your preferred music services such as Pandora® or Spotify® or tune in to the game or your favorite radio show via the built-in AM or FM radio — or use the built-in USB port to play back your own personal collection from a compatible smartphone or USB memory stick.

Unprecedented Audio Reproduction

Boasting a powerful 40 W speaker system with custom 2.5” speakers, a large bass radiator and digital signal processing, all driven from a class-D amplifier, StereoActive delivers unprecedented audio reproduction — in any environment.

Long-lasting Battery Life with Quick Charge Technology

Built-in dual rechargeable lithium-ion batteries provide up to 20 hours of play time and boast charging capabilities for your smartphone and tablet via the USB port — for when your adventure takes you miles away from a charge.

Secure Mounting, Anywhere

The unique FUSION Puck™ mounting system enables quick, secure mounting of the StereoActive system to any boat, paddle board, kayak, whirlpool spa or even your 4 wheeler — leaving you to enjoy your music rather than worrying about your stereo floating away. Be confident you can truly mount your StereoActive anywhere.

Garmin Smartwatch Control

By using the power of ANT+® wireless technology, our compatible smartwatches let you control StereoActive directly from your wrist. Track your pulse, paddle stroke or skip to your favorite song and turn it up to get in the zone for a new personal best. Simply download the free FUSION-Link Lite app from our Connect IQ™ store.

Smart App Control

Wireless control of the StereoActive system is simple. Just download the free FUSION-Link app to your smartphone to enable Bluetooth control of StereoActive directly from your compatible smartphone. App functionality includes the ability to set tuner regions, scan stations, set presets, adjust volume and select your favorite music track.

Keep Your Valuables Safe and Sound

Need a place to protect your phone and car keys? The ActiveSafe™ container (sold separately) is designed to keep your valuables safe and dry while you spend the day on the water.

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Garmin is under license.

StereoActive Specifications
Bluetooth / USB / AM / FM / iPhone / Android / Weatherband (Weatherband available in USA only)
AM / FM (Japan, Australasia, Europe, USA) + Weatherband (Weatherband available in USA only)
USB Format
FAT 32
USB Audio Format
MP3 (Maximum 250 files per folder and 250 in the root director)
Made for iPod and iPhone
Apple IAP2 Lightning Connector Products: iPhone 7/Plus, iPhone SE, iPhone 6s/Plus, iPhone 6/Plus, iPhone 5/5c/5s, iPod touch 5th/6th gen
AOA Android Open Accessory
Android Open Source Protocol - List of Devices Coming Soon
Speaker Size
2 x 2.5” Custom Design + Passive Radiator
Amplifier Output
Class-D / 40 watts (2 X 20W Stereo)
Battery Up To 20 Hours
Dual Internal rechargeable high powered lithium ion cells provides up to 20 hours of use
Charging Requirements
110~220 Volt AC wall charger (supplied) or 12vdc 2a car charger (optional accessory) - charges within 3 hours
Water Resistance Rating
IPX7 / Floats
Polycarbonate With TPE Overmold
FUSION-Link Remote App - Bluetooth
Control via: Apple (Lightning Connector products) and Android
Garmin Smartwatch App via ANT
Garmin Smartwatches (VivoActive/HR, Fenix 3/HR, Tactix Bravo, Quatix 3, D2 bravo) - Requires FUSION-LInk App via Garmin Connect IQ Store
Voice Prompts
12 unique Multi-Language Voice Prompts Available for Download. Languages available in English, French, German, Dutch, Italian and Spanish
Standard FUSION Puck Mount Supplied with Screw, Adhesive Pad & Puck Protective Cover for use when the StereoActive is not attached
236mm X 82mm X 139mm
1.3 KG
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Garmin GPSMAP 521 User's Manual


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Fusion WS-SA150W StereoActive Portable Watersport Stereo in White

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