The manual of the item SW79777 1:Function:Steady- Flash -Off ,when operation the front light ,the function of the rear light is the same .If the rear light didnt received the signal from front light ,the front light will quick flash to remind this situation .if the client just wish to use the front light ,press the button more than 3 seconds. if client wish to use the two lights together ,press the light one time ,then the rear light with battery will start to work . 2:Code processing: long press the front light button for 10 seconds to enter the code mode, at this time, the rear light battery can be installed to the code 3:Both front and rear light have low battery indicator . 4:Front light : Lithium polymerbattery 3.7V ,1200MA .rear light:3V ,AAA*2 5:When charge the front light ,the green led will be on ,when finish charge ,the green led will be off .the charging time is around 3 hours . 6:Long press the button for 60 seconds to enter the test mode, short press to switch the frequency point/carrier, and long press 5 seconds to exit the test mode.The eighth pin of receiver chip is connected to a ground button, long press 5 seconds to enter the test mode, long press 3 seconds to enter the code mode, short press to switch the frequency point carrier. Attention:
1:The rear light is under low power consumption standby mode ,if long time no use the light ,pls take the battery out to aviod the weeping happen 2:Under the situation of turn off ,when restart the rear light , it will need around 2 seconds ,this is normal situation . 3:Please take attention that changes or modification not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. FCC Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation. Attention that changes or modification not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. Note: This product has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This product generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this product does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help.