HANDHELD SCIENTIFIC Bluetooth Keyboard Adapter. Video 2. First three mouses.

USB HID via Bluetooth /USB2BT http://handheldsci.com/kb https://4pda.ru/forum/index.php?showtopic=881589&st= #entry68728154 Mouses used in the test: a4tech BW-26 http://www.a4tech.com/product.asp?cid=1&scid=1&id=187 Logitech M705 X-710MK http://x7.cn/en/product.asp?id=37 [UPD 14.10.2018. This BKA (BT-400) is not produced more. New version of the devise is BT-500. All firmware issues of BT-400 which I showed in my videos was fixed in BT-500]