Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Specifications :Power source : 2 x AAA batteries (not included)Rated power : 150 mWFrequency range : 50-20000 hz at -3dBSensitivity :84dB +/- 3dBImpedance :320hmSize: 63x56*19mmWeight: 40gOperating temperature : -20 to + 50 degree centigrade Features:Two headsets with slimline inear type headphones with ear hooks and jacket cable clips.Two flexible ， comfortable Mic’s.Voice Activated.Handsfree connection box with connections for 2 headsets with microphone and audio unit .The main connection box is very compact approximately 6 x 5 x 2 cm ， and it is very light so it can be easily carried in a pocket .Included the belt clip holder.Its additional multi- function audio input connection socket is for an external atdio . For Walkman ， CD or MP3 player or radios for a pleasurable ride ， enjoy music while riding ， at the same time conversing wih your pillion rider ， as the voice overrides the musicAudio input cable is included .ready to be connedted directly to the source.Personal separate volume control ， one for the rider and one for the passenger.With LED low battery power indicator.To be used with 2 x AAA batteries (not included).Open， flip up as well as Full face helmetsInstruction booklet. Assembly :Please pay attention to the installation of the battery.According to the correct instruct putting baatery of the controller ， as it show LED give out light for a long time and the sound quality became poor ， you need to change the battery.Pls take out the battery when the item is not in use . Each piece included:1 x Cable1 x Intercom2 x Headset