This cadence sensor lets you capture the cycling data with your mobile devices.
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Features:
SHOCKPROOF: Resistant to 1.5m fall naturally.
WIRELESS: BT4.0 wireless transmission protocol.
LONG BATTERY LIFE: Normal use for one year (an hour per day).
IPX7 RATING: Allows for riding in rainy days.
COMPATIBLE DEVICES: IGS2OP,IGS30,IGS216, IGS60; EDGE500/510/520/800/810/1000.
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Specification:
Model: C61
Color: Black
Material: ABS
IP Rating: IPX7
Power: 1 * 3V / 120mAh CR2032 (Included)
Dimension: 37 * 36 * 10mm / 1.5 * 1.4 * 0.4in
Net Weight: 9.5g / 0.3oz (with battery)
Package Size: 102 * 81 * 26mm / 4.0 * 3.2 * 1.0in
Package Weight: 29g / 1oz

Package List:
1 * Cadence Sensor
1 * Silicone Pad
1 * CR2032 Battery
2 * Strap
1 * User Manual