Instruct: Classify Amazon reviews into positive or negative sentiment
Query: iGo System

The tips and extensions are great. Instead of buying a new wall or car charger for $30, just spend $7 for a new tip and sell your old tip on eBay. DO NOT BUY THE iGo SPLITTER IF YOU ARE GOING TO USE IT WITH A PHONE, ESPECIALLY AN IPHONE. I SPOKE TO THEM A YEAR OR SO AGO WHEN I FIRST STARTED USING IGO PRODUCTS AND THEY ACTUALLY NEW THAT THEIR SPLITTER DID NOT WORK WITH PHONES BUT THEY CONTINUED TO SELL THE SPLITTER AND MARKET THE SPLITTER AS IF IT COULD BE USED TO CHARGE TWO DEVICES AT ONE TIME! YOU CAN NOT USE THE SPLITTER TO CHARGE TWO CELL PHONES OR EVEN ONE CELL PHONE AND ONE BLUETOOTH EARPIECE. THAT'S THE SAME AS LYING! IGO JUST SAID, "YEAH, WE'RE WORKING ON THAT." JUST REALIZE THAT THE SPLITTER WON'T WORK LIKE YOU WANT IT TO.