HC-06 Wireless Serial 4 Pin Bluetooth RF Transceiver Module RS232 TTL New for Arduino

Features:
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+EDR
Operating voltage: 3.3V
Default Baud Rate: 9600,8,1,n.
Signal coverage: 30ft
Cable length: 21.5cm
Item size: 4.3 * 1.6 * 0.7cm
Item weight: 3g