Suitable for use with the Bosch GRL 300 HV & GRL 300 HVG Professional Laser Levels, the RC 1 Remote Control can be used over distances up to 30m to align & rotate the level. The remote control is powered by AA batteries. Features and BenefitsHandy remote control with a range of 30 mFor all functions including alignment of the laser line of the rotation laser in vertical modeAppropriate for GRL 300 HV Professional and GRL 300 HVG ProfessionalSpecificationsRange: 30 mPower supply: 1 x 1.5 V LR6 (AA) Weight, approx: 69gIncludes:1 x 1.5 V LR6 (AA) battery