... CE,RoHS,FCC provied. hot-selling 2.4g wireless Mini mouse for laptop Radio Frequency 2.4Ghz and optical technologyStreamline style design, less ... *61*35mmReceiver: Mini Nano receiverWeight: g +/-20g Channel: 1 channel ID: 65535 sets Radio frequency: 2.4 GHzKey life:5,000,000 times ... number: 3 keys Battery life: 480 hours (continuous operation) Battery: 2 AAA (alkaline )