This Wireless Helmet Brake Light has one transmitter and one 8-LEDs receiver which is very bright even in the daytime. The receiver consists of 8 LED light bulbs. When the rider applies the brake， the brake light unit will send a signal to the receiver. The receiver will light up to ensure the safety of the rider. Enjoy your ride knowing that you'll be safe!Features:8 bright LED light on the receiverFour red lights in the middle are brake lights， guranteen the safety while drivingTwo yellow light beads on the left are left turn lightsTwo yellow light beads on the right are right turn lightsOne key switch on the receiver， once turned on， the signal lights will flash twiceThe receiver and transmitter have code matching function3M ahdesive tape on the back of receiver， easy to stick on the helmetPowered by 2 x AAA batteries ( not inlcuded) Model : JHIR05001 Type : Turn Signal Light， Brake Lights Connector: No LED/Bulb quantity: 8 Feature: Easy to use， Low Power Consumption Emitting color : Multi-Color Voltage : 12V Type of lamp-house : LED Apply lamp position: External Lights ArrayPackage weight: 0.112 kg Product size (L x W x H) : 15 x 3.5 x 2 cm / 5.90 x 1.38 x 0.79 inches Package size (L x W x H) : 19 x 7 x 3 cm / 7.47 x 2.75 x 1.18 inches Package Contents: 1 x Wirless Motorcycle Helmet LED Brake Turn Signal Light， 1 x Screwdriver， 1 x English Manual， 2 x Screw， 1 x Transmitter