Roho Agility Mid Contour Back System w Air & Lumbar Pad Digital Scales you now have a powerful MSHQ BH190XL you now have a powerful chance to finally hear others in conversations❗ unit * AA rechargeable batteries and AC power with charger stand sold separately * Memory for 72 hours of data storage * 3 Year Manufacturer's Warranty * Efficient 60 hrs of battery life * The new ROHO AGILITY Mid Contour Back System is the perfect blend of innovative features that give wheelchair users comfortable support without sacrificing function Innovations that give you peace of mind * ROHO AIR FLOATATION Insert allows individuals to adjust air volume to their desired comfort level * Supports postural changes * Full Adjustability * AGILITY Back Shell can be flipped to accommodate wider torsos and broader shoulders * Wide range of tilt angle (15 degrees forward or backward) depth width and vertical adjustment capabilities to address specific positioning needs * Full range of contours for varying postural support and positioning needs * AGILITY stays in place with the hardware's unique interlocking teeth that helps prevent slippage of the back system under load * Durable lightweight hardware constructed of cutting edge Zytel© nylon composite material * Suitable for wheelchair use in a motor vehicle * Tested and surpassed industry motor vehicle crash test standards: ANSI RESNA WC 20 Seating Devices for use in motor vehicles