Thermaltake LUXA2 Groovy W NFC Bluetooth Speaker with Wireless Charging Station and App Control AD-SPK-PCXCBK-00 Bluetooth 3.0 & Near Field Communication (NFC) Technology; Standalone: Up to 15 hours playing time Hi-Grade 4000mAh Wireless Charging Station; With Wireless Charging Pad: Up to 30 hours playing time Mesmerizing LED Touch Panel Controls LUXA2 Groovy Audio Center App. Wireless & Wired Charging Options Available