This review is from: Sennheiser PXC 310 BT Closed Mini Headphones (NoiseGard 2.0 Technology,Talk Through Function,Bluetooth 2.1 Wireless Transmission) (discontinued by manufacturer) (Electronics)
These may not be sonically the best headphones you'll ever own, but that's not what you buy bluetooth phones for. Having said that the sound quality is not that bad, certainly good enough for listening to music & films on the iPad. Pairing is simple, I have experienced no lag when watching movies or videos, and the range is fantastic. I can have my iPad downstairs and still listen to music 2 floors up! Battery life is great too.
The issues about the flashing Bluetooth light is solved by reading the manual. You can switch it off if needed.
All in all these are a great set of headphones that do exactly what you want and I recommend them.