How much does this cost to the nearest dollar?

EBL Rechargeable 9V Batteries 4-Pack with 9V Battery Charger (Built-in USB Cable) Insert Charger for Rechargeable 9 Volt Lithium-ion/Ni-MH/Ni-CD Batteries
9v Rechargeable Batteries with Charger - Included 4 packs lasting long 9volt 600mA lithium batteries and 9v battery charger. Bulit-in USB Cable - Don't need to find the charging cable anymore. The 9v battery charger inserts the USB cable into the body. And this charger is equipped with a spare Micro USB interface, you can also use this interface for charging. (Upgrade The package with an additional 1m Micro USB cable) Battery Charger - Individually compatible for Ni-MH Ni-CD Li-ion

Price is $30.00
Price: $29.99