Overview Highlights Effective distance 10m. Requires 2 7-cell alkaline batteries or 2 7-cell rechargeable batteries (not included). USB docking station,plug and play. 3 HUB ports. 1 fast charge port,data exchange and charging are combined into one. On the side,there are forward and backward shortcut keys to browse the web and resource management. The left and right hands are symmetrical design,so that the left and right hands can be easily controlled. Key Attributes Dimensions (Length x Width x Height) 10cm x 5cm x 2cm weight 0.05kg Stock Location Country of Origin Brand generic Shipment Information Weight per item 0.05 kg Dimensions per item (LWH) 10 x 5 x 2 cm Carton weight 0.15 kg Carton dimensions (LWH) 10 x 13 x 5 cm Pieces per carton 3 Stock location