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FREE Delivery on orders over $300
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Stay safe and aware—ride with radar precision and smart lighting that outperforms the rest.
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The SEEMEE R300 is a next-level smart radar taillight designed to protect you from behind. It detects oncoming vehicles from up to 140 meters away and syncs via ANT+ to your Garmin, Wahoo, or Hammerhead cycling computer. Packed with 300 lumens of visibility, PelotonSync flashing, app control, and a powerful 3350mAh battery, the R300 ensures you’re always in control—on your own or in a group.
FEATURES
Radar Detection: Alerts for vehicles up to 140m away with visual/audio warnings
ANT+ Compatibility: Seamless sync with Garmin, Wahoo, Hammerhead
PelotonSync Flash: Sync flashing patterns with other Magicshine taillights
App Control: Manage radar and wake settings via the Magicshine app
Auto Wake-Up: Sleeps after 5 min of inactivity and wakes with vibration
Smart Lock: Prevents accidental activation
IPX6 Waterproof: All-weather performance
Quick Release Mount: Tool-free seatpost installation
Light Modes & Runtime (Radar ON / OFF)
LOW (15LM): 14h30 / 32h42
HIGH (50LM): 8h / 19h30
NIGHT FLASH (10/50LM): 11h54 / 26h30
DAY FLASH (0/100LM): 16h12 / 38h24
ECO FLASH (0/3/3/10LM): 24h / 100h
GROUP RIDE MODE (5LM): 20h06 / 54h
ONLY RADAR MODE (1LM): 26h18
SPECIFICATIONS
Max Output: 300 lumens
Runtime: 8 to 100 hours
Wireless Protocol: Bluetooth, ANT+
Radar Detection Range: Up to 140 meters
Max Targets Detected: 8
Detection Angle: 35° horizontal / 45° vertical
Speed Detection Range: 5–100 km/h
Radar Frequency: 24GHz–24.25GHz
Battery: 3.6V 3350mAh
Charging Time: 2.15h (USB-C, 5V/2A)
Material: Aluminum + Plastic
Weight: 113g
Warranty: 2 years
WHAT’S IN THE BOX
SEEMEE R300 x1
Round Seatpost Mount x1
Aero Seatpost Mount x1
USB-C Charging Cable x1
User Manual x1