... Water proof with IP65 wireless door bell with hearing aid, CL-6011 Technical Specifications1. CE (EMC LVD TBR6)2. Standard: Digital Enhanced Cordless ... batteries Features1,Wireless Audio Intercom2,Wireless digital technology3,Use the handset to talk with outdoor unit4,Use the handset to ... speaker, easy use for senior people8,High quality intercom with communication (range: Indoor 35~50 meters)