Comfortable neck loop for use by visitors wearing telecoil hearing aids, set to the T position. The neck loop plugs into the headphone jack on the pickup and is worn with a lanyard around the neck. No batteries required.Accessibility is the key to a great audio tour. This comfortable neck loop is designed for use by visitors wearing telecoil hearing aids and amplifies sound from your Dataton PICKUP audio guide. The passive construction of the loop means no batteries are required, keeping maintenance to a minimum. The soft yet durable fabric used in the loop improves performance and ensures utmost comfort for the visitor.