This Bluetooth speaker will not bring down the house though, as the 3W speaker will feature a frequency response of 20Hz through 20Khz only, and carries a battery which ought to last for up to 4 hours at a go. As for the receiver itself, it is a Bluetooth 2.1 device, and will feature support for A2DP and AVRCP. Of course, the inclusion of the provided cable would mean the Bluetooth receiver can be decoupled from the speaker, and use it with nearly any speaker set via RCA connectors or a 3.5mm plug. If you are interested in the Lyrix Duo, it will come in red and blue shades, retailing for $50 a pop.