DESC: Speak up and spread the word. Bring others into the conversation by turning your phone into a speakerphone. No additional power source required. Use simultaneously with a travel charger or vehicle power adapter. With the softkey button on your phone, you can easily switch between public and private conversations.To use: Attach Clip-On Hands-Free Speaker to a compatible phone, dial a phone number and press send. When the phone connects to the call, the word “SPEAKER” will appear in the display. The right soft key will allow you to toggle the speakerphone on or off. Please note: The word "SPEAKER" appears in the display only when the Clip-On Hands-Free Speaker is attached to phone and in a call. Compatible with V. Series™ 120c and Motorola 120x phones.