Bluetooth Speaker : wireless bluetooth transmission Built-in ABR, amazing Bass effect Replaceable Lithium battery Wireless Bluetooth Speaker Caps-258 (HM-258B)1. Bluetooth wireless transmission supported, with bluetooth , paired with Iphones, IPAD, MAC , various bluetooth enabled cellphones,computers, laptops,etc2. 3.5mm audio jack, compatiable with various bluetooth phones, MP3/MP4/CD/PC/MAC/PSP ...