SF31 Bicycle Smart Brake Taillight USB Alerter Night Ride Ride Mountain Vehicle Turn LED Taillights, SF31 New Remote Control Option:SF31 New Remote Control Video Frequency: PAL/NTSC signal system

Video Frequency: PAL/NTSC signal system

Non-slip silicone protects your tablet from accidental scratches

ACR122 is a frequency of 13

77inch * 10

SF31 Bicycle Smart Brake Taillight USB Alerter Night Ride Ride Mountain Vehicle Turn LED Taillights, SF31 New Remote Control Option:SF31 New Remote Control Video Frequency: PAL/NTSC signal system1. Press the remote control electric bell button to alert the surrounding pedestrians and vehicles to avoid 2. Anti theft alarm function, remove the remote control to arm when parking, scare off thieves 3. PC+UV material, waterproof and dustproof, high and low temperature resistance 4. Waterproof and dustproof structure, easy to install, suitable for all kinds of vehicles 5. Warning light will come on automatically when crossing tunnels or travelling