CONVENIENT REMOTE CHARGING: Keep your Airshield Pro battery charged and ready to go while you work with this remote battery cradle. CONTINUOUS USE: The cradle allows for the charging of a second battery, ensuring continuous use of your Airshield Pro (AIR/PRO) dust protector. TRUE COMPATIBILITY: The Trend Airshield Pro Remote Battery Cradle is compatible with the Airshield Pro Charger (AIR/P/5) and Airshield Pro Battery (AIR/P/4) only. PORTABLE DESIGN: With its lightweight design, the Trend Airshield Pro Remote Battery Cradle is easy to use and transport, so you can take it with you wherever you go. EASY TO INSTALL: The Trend Airshield Pro Remote Battery Cradle is quick and easy to use, so you can start using it right away without any hassle.