Mercury 2-Way Intercom Energy Saving Telephone Style Wall Mounted AVS-226391

2 Station Telephone Style Intercom System A two station, energy saving, telephone style intercom with a simple two wire connection, allowing 2-way conversation. It features a call button with adjustable call tone level. Both units are powered by 4x AA batteries (not supplied). Features: Can be free standing or wall mounted (brackets supplied) Maxi... moremum transmission range 200m Easy to set up and operate 8m of 2 wire connecting cable supplied (use 808.207UK for up to 100m distance) Both units require 4 x AA batteries (not supplied) Specifications: Power supply6Vdc (4 x AA per unit) Sensitivity