Lightahead Portable bluetooth Speaker for phone mini speaker for Ipod Laptop & Other Devices with TF Card slot MP3 (Silver) These speakers are perfect for any audio device with Bluetooth including your phone, and non Bluetooth with 3.5 audio jack(provided) Bluetooth version 2.1EDR Powerful built-in amplifiers for a great loud volume .Engineered for exceptional clarity of sound Featuring a 3.5mm jack and usb wire.With Tf card slot(card not included) to play your favorite music Built in Lithium batteries.