Standard Horizon Alkaline Battery Tray for HX290 & HX400/HX400is Standard Horizon Alkaline Battery Tray for HX290 & HX400/HX400is The Standard Horizon FBA-42 Alkaline Battery Tray allows you to use AA batteries in your HX290, HX400 and HX400is VHF Radio. SKUSTXFBA42 MAN#FBA-42 ID#: 3548 Our Price: $22.95 Availability: In Stock Condition:Brand New Add to cart We’re sorry for the inconvenience, but please know we are working hard to replenish stock and fill backorders. Global shipping constraints and other material shortages have slowed the supply of products in many industries, including GPS and Marine electronics. We update the Estimated Shipping Date on our website in real time, so feel free to check back frequently. Thank You for your patience and for shopping with The GPS Store, Inc.