hii need100M Class 1 Bluetooth Serial adapter RS232 DB9 link for CNC machines, PDA, Laptop, or other Bluetooth DeviceCoverage:up to 100 mSignal:TXD, RXD, GND, CTS, and RTSRS-232 Interface:D_SUB 9-pin femaleStandard:Bluetooth specification version 2.0+EDRDimensions:35 mm (W) x 65 mm (D) x 16 mm (H) Show More