Banggood New Wireless Serial 4 Pin Bluetooth RF Transceiver Module RS232 With Backplane
Allows your device to both send or receive the TTL data via Bluetooth technology without connecting a serial cable to your computer.Works with any USB Bluetooth adapters.Default Baud Rate: 9600,8,1,n.Built in antenna.Coverage up to 30ft.Specifications:Bluetooth version: V2.0+EDROperating voltage: 3.3VDefault Baud Rate: 9600,8,1,n.Signal coverage: 30ftCable length: 21.5cmItem size: 4.3 * 1.6 * 0.7cmItem weight: 3gPackage size: 9 * 3 * 1cmPackage weight: 8g