The Sylvania Outdoor Rock Bluetooth Speaker is designed to blend into your outdoor décor and is ideal for your garden or patio. You can enjoy Bluetooth playback from any device with Bluetooth wireless technology. There is also a 3.5 mm. auxiliary input jack for use with an MP3 player or any device with a headphone output that also lacks Bluetooth capability. This Bluetooth outdoor rock speaker features a 2,000 mAh lithium rechargeable battery.