Thank you for purchasing Wei king BT 101, ula slim speaker with extreme bass, BT101 speaker delivers impact wireless audio by Bluatooth® windlass technology. I's perfect companion fo any phone, music player, tablet or laptop allows u share music whenever you want, EBT101 speaker delivers impact wireless audio by Blustooth® wireless technology. It's perfect companion io any phone, music player, ballet or laptop allows u share music whenever you want.