[. . . ] Please do not add any parts or use any accessory which is not provided from the manufacturer. [. . . ] UP: When you push this button, it will increase the function that you selected. DOWN: When you push this button, it will decrease the function that you selected. When you push this key one more time, it will stop the "Mute" mode. You have made a wise selection in becoming the owner of a Audiovox Mobile Video equipment. The equipments are checked and tested continously during the entire production process. In case you have problems with your Audiovox Mobile Video equipment, kindly observe the following: 1. The 2-years guarantee period commences with the purchase of the component and is applicable only to the original owner. During the guarantee period we will rectify any defects due to faulty material or workmanship by replacing or repairing the defective part at our discretion. [. . . ] Reimbursement of cools, without our prior consent, when repairing damages by third parties · [. . . ]