Clarity D704HS Amplified Phone Expansion Handset Magnifiers and More » Products Page » Telephones » Clarity D704HS Amplified Phone Expansion Handset The Clarity® D704HS™ is an add-on telephone handset for expanding the D700 series of Clarity telephones D704, D714 and D724 to other rooms around your home. Quantity Price: $60.00 Updating cart... Updating...