If your 'thing' is a dance party by the light of a flickering flame, the Zebronics Atom Bluetooth speaker might be a good choice.
In essence it is a 3-watt speaker with an audio range of 100Hz to 20KHz, to which you can couple your music source wirelessly over a distance of about 10 metres. Or you can insert a microSD card of up to 32GB with your MP3 tracks. The speaker comes with a built-in battery which works for just over 2 hours on a full charge.
All that is fairly standard. There is no sync with a mobile phone. Candlelight party goers presumably don't want the song-n-dance, interrupted by anything as mundane as a phone call.
What sets the Atom apart is its design — shaped like a retro lantern — and 60 LED bulbs glow in unison on the touch of a switch, creating the illusion of a flickering, dancing candle light. A stylish accessory to any party, indoors or outdoors, the Zebronics Atom costs Rs 1,699