This is a BT2500 I agree with all the positive comments on the sound, which for me is comparable to that of my Sony TV 32EX5200 while saturating a little faster. The connection with smartphones is almost instant. By cons if I try to connect the BT2500 with my PC (Asus and Gigabyte MA78LMT Eeepc 2500) with either of the two key and BT211 Asus Belkin, the connection is made (confirmed by a message) and before the sound switches a beep sounds and the enclosure BT2500 is extinguished. This phenomenon has never happened with my usual Creative D100 speaker. Philips Service contacted obviously said that since it works with smartphones, it's the fault of 2 pc! I was fine to replicate the PC accepting other bluetooth speakers, the reverse was even more true, nothing worked. Also, before turning the device, I would like to know if anyone has had the same problem and how it was resolved. Thank you for your response.