Each recording is customised to suit your business requirements. You can choose from a range of tones, voice artists, or create a custom script for your on hold message.
I haven't used this device for an extended period, but since there are no mechanical parts, I expect that it will last. We have been using a professional on hold service for many years at about $60/month. The box that the professional company gave us sounded great when customers would call from a Lan Line. But, when calling from cell phone the voice messages were lower volume and the music would sound horrible. Music keeps cutting in and out and sounds very staticky. So we decided to save some $ and cancel our subscription and buy this unit. We are using the default music and voice messages that came preloaded instead of doing our own music and messages.

Although most clients select just one voice talent to read their entire script, some choose two voices for a more interesting finished product. The most common choice is to have both a male and female read the script in an alternating format.
Generic pop songs perform better than those with prosocial lyrics or instrumental music. It turns out people calling in with grievances don’t want to hear songs about helping the world, and stereotypical elevator music triggers anger when on hold for extended periods.