Check the listing for details. Commax 2-Way 1 to 1 Indoor Intercom System AC110V Powered TP-1BE/TP-1BS. Condition: New. Listed at 69.00 USD. 2-WAY 1-to-1 INDOOR INTERCOM SYSTEMTP-1BE/TP-1BS Features1:1 Intercommunication, paging and talkingIncludes: master unit TP-1BE and slave unit TP-1BSConvenient and flexible installationApplicable to hospitals, guard stations, office environmentsProduct SpecificationsMaster unit power source: AC110V, eletrical plug US type ASlave unit power source: from master unitMounting type: Wall surface mounted typeTemperature: 0ºC ~ 40ºC (32ºF ~ 104ºF)Wiring: 2 wiresDistance: 500m (Ø0.65)Dimension (mm): 105 (W) x 211 (H) x 43 (D) Package includes:Master unitSlave unitWall-mount bracket x 2Instructions x 1 Terms of sale: We can’t ship to addresses other than the address stated in the order form. Please make sure your address is correct and complete. Please be advised that we’re not responsible of any delay or lost package due to incorrect addresses. Item warranty is one year. All defective items should be notified within 10 days after item received. Please note that warranty will be void if the item is modified or misused. If the item is returned claiming defective and after the diagnostic is found that is not, there will be a 20% restocking fee plus any Shipping & Handling fees that incurs. If buyer purchased a wrong item or bought it by mistake, buyer is responsible for the return shipping. Shipping & handling charges are non-refundable. For free shipping orders, the shipping cost incurred will be deducted from the refund. Thank you!