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Specifications.
GPS Chip
Chipset: MTK 3329
Dimensions
81.7x 54x 22 mm
Weight
84g
Battery
Rechargeable 1050 mAh lithium battery
Power
DC5V/1A
Button
2 buttons : Menu / Power + 5 Direction keys
Antenna
Built-in patch antenna
IO Interface
Mini USB
Display
High-contrast electro-luminescent backlit display, 4-level grayscale LCD.
Dimensions : 33.5 × 33.5 mm, 1.5 »
Resolution: 128 x 128 pixels
Environmental
Temperature
Operating Temperature: -10°C to 60°C
Storage Temperature: -20°C to 70°C
Battery Recharging Temperature: 0°C ~40°C
Water proof
IPX7
Wireless Protocol
Supports ANT+ 2.4G wireless protocol:
ANT+ heart rate monitor sensors
ANT+ bike cadence sensors
ANT+ bike speed sensors
ANT+ combo bike speed/cadence sensors