... are a leading manufacturer of wireless presenter in Shenzhen,Chinawireless laser presenter, Wilress presenter, laser pointer penModel: V-890 Patent: 200830102998.1 Function: 1, ... laser pointer; 2, page up/down; 3. built-in memory optional (1G/ ... :AAA*1 Dim: 132*17*21mm USB plug and playPacking: gift box Qty: 50pcs/ctn Meas: 46.5*32*17 ...