I just find a 30 hours working time NFC speaker in ebay This is the cheapest, but the seller maybe a new seller , I do not bid it. The Good: no pair no bluetooth, wireless, no wifi. 30 hours working. The cons: you must put you phone on the speaker. The link : http:// www.ebay.com/itm/Wireless-NFC-Induc...Audio_Docks_Mini_Speakers&hash=item3f3256c037 It seems not the real NFC I just see many wireless portable speaker in Apple online store, but they are all bluetooth, any advise?