GiftU corporate gift expert, provides customised USB drive business gift set, guaranteed imported chips, small order welcome, 10 days production

 AAA Battery
System Support:W indows xp/V ista/W indows 7/W indows 8 /W indows 10/MAC
Diatance: 10M
Frequency: 2.4GHz
BatteryT YPE: 2pcsAAA Battery / POLYMER LI