wireless mouse 2.4 1.wireless presenter with thumb mouse; 2.Integrative design; 3.CE,FCC,RoHS,FDA approved RF2.4GHz wireless ... be stored into transmitter;2, Thumb mouse, laser mouse & optical mouse integrative;3, Warranty period: 1 year;4, International standard met: ... CE, FCC, FDA & RoHS5, Standard package: color box; V-288 Wireless mouse 2.4 ...