Key Features:

• Rugged anodized aluminum case (MIL-A-8625F Type II)
• Set via WebUSB in a web browser (USB data cable included)
• Built-in speaker with audio from a professional voice actress
• 2.5 mm jack overrides built-in speaker for use of external speakers or earphones
• Regular spoken altitude announcements in user-defined increments and ranges for each phase of the skydive
• Unlimited additional spoken notifications (100 factory sounds, e.g. "breakoff")
• Can also emit beeps and sirens like a standard audible
• Simple firmware updates as easy as dragging files onto a USB drive
• Share your settings with fellow skydivers
• Add your own sound files
• Three custom user presets selected via button press on the altimeter
• Always on
• Remembers your settings when the battery runs out
• Adjusts automatically to local elevation
• Freefall threshold can be customized for swoopers and wingsuiters
• Landing zone offsets possible for those landing at a different altitude than takeoff
• Tested to function accurately up to 30,000 feet
• Rechargeable lithium polymer battery
• Long battery life of approximately 100 jumps or two months
• Low battery warning at 1,000 feet
• Check battery status and other info by holding down both buttons

Technical Specifications:

• Dimensions: 55.0 × 34.1 × 11.9 mm (2.17 × 1.34 × 0.47 in)
• Weight: 35.9 g (1.27 oz)
• Anodizing type: MIL-A-8625F Type II
• Battery: rechargeable lithium ion 3.7 V 250 mAh
• Peak output volume: 90±3 dBA @ 10 cm
• Audio format: mono 16-bit 44.1 kHz PCM
• Operating temperature range: -40° to +65° C (-40° to 150° F)
• Operating altitude: -500 to 9,000 m MSL (-1,640 to 29,528 ft)
• Altitude resolution: 0.5 m (1.64 ft)
• Sample rate: 50 Hz
• Charging temperature range: 0° to +50° C (32° to 122° F)
• USB connector: Micro USB 2.0 Type B

Shipping Weight: 8 oz. (225g)