FDS VoxAlti: The Loudest Speaking Altimeter Ever Created
The Freefall Data Systems VoxAlti represents the pinnacle of speaking audible altimeter technology. Featuring an extra-loud speaker with professional voice actress audio, military-grade IP67 waterproofing, Wi-Fi firmware updates, and Bluetooth app configuration, the VoxAlti delivers crystal-clear altitude callouts even in the loudest freefall conditions—redefining what a speaking altimeter can be.
Key Features:
- Extra-Loud Speaker: 100 dBA @ 10cm peak alarm output—the loudest speaking altimeter available
- Professional Voice Actress Audio: Crystal-clear MP3-quality spoken altitude announcements
- IP67 Waterproofing: Military-grade hardcoat-anodized aluminum case (MIL-A-8625F Type II)
- Wi-Fi Firmware Updates: Over-the-air updates without USB connection
- Bluetooth App Control: FDS Altis app for iOS/Android configuration
- Dual Audio Modes: Speaking announcements PLUS traditional beeps and sirens
Who Should Use the VoxAlti: Perfect for pilots demanding the loudest possible speaking altimeter, jumpers in windy conditions or loud helmets, AFF students building altitude awareness, formation organizers, wingsuiters, tunnel flyers, or anyone who found previous speaking altimeters too quiet in freefall.
The Extra-Loud Advantage: Speaking altimeters face a fundamental challenge: wind noise in freefall is extreme. The VoxAlti solves this with an extra-loud speaker specifically engineered for high-noise environments. At 100 dBA peak output, it’s significantly louder than previous speaking altimeters while maintaining exceptional audio clarity.
How It Works: Configure highly customizable spoken altitude announcements for each phase of your skydive (ascent, freefall, canopy). Set announcement increments (every 1000ft, every 500ft, specific altitudes). Add unlimited notifications from nearly 100 factory sounds (“breakoff,” “track,” “pull”). The VoxAlti can also emit traditional beeps and sirens for critical alerts—giving you speaking callouts AND standard audible functionality.
Configuration & Customization:
- Five User Presets: Create presets for different jump types, switch via button press
- Unlimited Notifications: Nearly 100 factory sounds included
- Preset Copying: Duplicate presets for easy modifications
- Bluetooth App: FDS Altis app for iOS/Android provides full configuration control
- Freefall Threshold: Customizable for wingsuit (lower) or swoop (raise) modes
- Landing Zone Offsets: Adjust for landing at different altitude than takeoff
Next-Generation Technology:
- Wi-Fi Firmware Updates: The first skydiving altimeter with over-the-air firmware updates—no USB connection needed
- IP67 Waterproofing: Fully protected against dust and water immersion up to 1 meter
- 50 Hz Sample Rate: Ultra-responsive altitude tracking (vs 12.5 Hz on older models)
- 0.5m Resolution: Exceptional altitude precision (1.64 ft)
- Military-Grade Anodizing: MIL-A-8625F Type II hardcoat for maximum durability
Jump Logging: Logs jumps for syncing to FDS Logbook cloud service. Track jump history, review altitude profiles, analyze vertical speed data. Long-term jump tracking builds skills and documents progression.
Battery & Power:
- Battery Life: Approximately 4 months or 50 jumps per charge
- Charging: USB-C (included cable)
- Low Battery Warning: 1,000 feet alert prevents surprise power loss
- Battery Status Check: Hold both buttons to check battery and system info
- Always On: No power switch—automatically activates on climb
Build Quality: Rugged hardcoat-anodized aluminum case built to military specifications. IP67 waterproofing protects against dust, moisture, and water immersion. Compact dimensions (61.0 × 32.0 × 12.2 mm) fit standard helmet audible pockets. Lightweight at just 39.3 grams.
Technical Specifications:
- Operating Altitude: -500 to 9,000m MSL (-1,640 to 29,528 ft)
- Tested to 30,000 feet: Functions accurately at high-altitude jumps
- Operating Temperature: -40° to +65° C (-40° to 150° F)
- Audio Format: MP3 for superior voice quality
- Connectivity: Wi-Fi + Bluetooth Low Energy
- Auto-Calibration: Automatically adjusts to local elevation
VoxAlti vs SonoAlti 4V: Both are speaking altimeters, but VoxAlti offers:
- Extra-loud speaker (louder than 4V)
- IP67 waterproofing (vs standard water resistance)
- Wi-Fi firmware updates (4V requires USB)
- Longer battery life (4 months vs ~1 month)
- 50 Hz sample rate (4V is ~12.5 Hz)
- Military-grade anodizing
Why Speaking Altimeters Build Better Skydivers: Hearing “nine thousand,” “eight thousand,” “seven thousand” throughout your dive builds altitude timing and awareness far better than discrete beeps at preset altitudes. Your brain associates spoken numbers with visual altitude pictures, training both your ears and eyes. The VoxAlti makes this learning process accessible even in loud freefall conditions.
Professional Voice Actress Audio: Unlike synthetic computer voices, the VoxAlti uses professional voice actress recordings in MP3 format for natural, easily understood altitude callouts even when wind noise is extreme.
Extra-loud. Extra-durable. Extra-capable. The speaking altimeter redefined.
