No more fighting over charger blocks and cables. And no more tangled wires around your house. OtterSpotWireless Charging System eliminates all that hassle with a simplified solution for charging all of your Qi wireless devices at once. Stack up to three OtterSpotwireless batteries (two included) on the charging base and add a device on top. Or pass around the batteries so everyone can charge a device wherever they are. Kids can grab OtterSpotbatteries to charge in their rooms and everyone can head out the door with a battery in their pocket. Keep all of your devices powered at home and on the go with cordless, compact, convenient OtterSpot.