How much does this cost to the nearest dollar?

Kastar 4Pack Battery and LCD Fast Charger with USB Output Compatible with Olympus BLN-1 BLN1 Battery, Olympus BCN-1 BCN1 Charger, Olympus M-D E-M1, OM-D E-M5, OM-D E-M5 Mark II, PEN E-P5, PEN-F Camera
Bullet Point 1 Kastar Ultra-fast Charger (Output with 1.0A) Charge over 3 times faster than a normal charger. Worldwide Input Voltage. Kastar Battery Utra-high Capacity. Use high quality Japanese Cells for longer battery life with no Memory Effect. Bullet Point 2 Includes USB output 0.6A then it could charge almost any USB device, like Apple phones, Smartphones, tablets and any other USB Powered Devices. Bullet

Price is $42.00
Price: $41.99