Battery type: 300 mAh rechargeable lithium-ion battery

Battery life: up to 8 hours in GPS mode; up to 2 weeks in power save mode.

Operating temperature range:

5°F–122°F (-15°C–50°C)

Charging temperature range:

32°F–122°F (0°C–50°C)

Radio frequency/protocol: 2.4 GHz/Dynastream ANT+Sport wireless communications protocol

GPS Antenna: internal patch

GPS Receiver: high-sensitivity integrated

USB ANT Stick

Physical size: 2.32 in. × 0.71 in. × 0.28 in. (59 mm × 18 mm × 7 mm)

Appendix

Weight: 0.01 lbs. (6 g)

Transmission range: Approximately 16.4 ft. (5 m)

Operating temperature: 14°F–

122°F (-10°C–50°C)

Radio frequency/protocol:

2.4GHz / Dynastream ANT+Sport wireless communications protocol

Power source: USB

Heart Rate Monitor

Physical size: 13.7 in. × 1.3 in. ×

0.4in. (34.7 cm × 3.4 cm × 1.1 cm) Weight: 1.6 oz. (44 g)

Water resistance: 32.9 ft. (10 m)

Transmission range: approximately 9.8 ft. (3 m)

Forerunner 405 Owner’s Manual