The RYOBI wireless speaker is a real boon for those who work on construction sites or in the workshop. Imagine, you can combine more than 100 of these speakers into one system! But even with just one speaker, the Bluetooth range is incredible - over 250 feet between the main speaker and the device, and up to 150 feet between additional speakers. Clear, crisp sound with well-crafted treble and bass. No “plasticity” or rattling that is often found in construction speakers. The speaker can run for over 32 hours on a single charge, you can use it for several working days without recharging. There is a built-in clamp with the ability to grip up to 1-3/4 inches. The swivel head and rotating base allow you to mount the speaker almost anywhere and direct the sound where you need it.