Garmin Forerunner 305 GPS Personal Trainer w/ Heart Rate Monitor

# GPS: High-Sensitivity SiRFstarIII? architecture
# Wireless: Communication between system devices via ANT protocol
# Weight: 2.72 oz (77 grams)
# Display (WxH): 1.3¡¨ x 0.8¡¨ (33mm x 20.3mm)
# Physical size (WxHxD): 2.1¡¨ x .7¡¨ x 2.7¡¨ (53.3mm x 17.8mm x 68.6mm)
# Lap Memory: 1,000 laps
# Battery Life: 10 hours (typical use); rechargeable lithium-ion battery
# Waterproof: IEC 60529 IPX7 standards (submersible in one meter of water for up to 30 mins.)
# Alerts: Time, distance, pace and heart rate
# Heart rate monitor features:
# Physical size (WxHxD): 13.7¡¨ x 1.4¡¨ x 0.5¡¨ (348mm x 35.6mm x 12.7mm)
# Transmission range: approximately 3m (9.8ft)
# Battery: 3 years (1 hour per day)/CR2032 (3 volts)
# Weight: 0.74 oz (21 grams)