... key at the mouse side,when the yellow light flashes, it means wireless connection is succeed,and ... (RF) keys, now the up right side yellow light of the keyboard will be on constantly, then plug the ... the USB port within 10s, if the yellow light turns off, it means connect successfully. Then move ... weight:around 80gCaution: To insure the using life of this product, please follow below instructions: 1.Please ...