Opteka Battery Pack Grip / Vertical Shutter Release with Charger, 2 LP-E5 Batteries (3600 mAh Total), Wireless Remote, Cleaning Kit, & Mini Tripod for Canon EOS Digital Rebel T1i & XSi Buttons for AE lock, AF point selector, aperture value, shutter, and mail dial Increases functionality and convenience, 1 Year warranty 5 Piece cleaning kit 2 LP-E5 Ultra high power True 1800mAh, Lithium Ion 7.2v, Memory free for maximum performance, Extended shots - Up to 25% more then original, Brand new, 2 Year performance warranty Opteka RC-4 Allows for shutter release up to 16 feet, Instant or 2-second shutter release delay