Model: BTH-07 - Color: White + Green - Material: FR4 + Fiber glass - Support the master / slave mode - Bluetooth protocol: Bluetooth specification v2.0+EDR - Frequency: 2.4GHz ISM band - Modulation: GFSK (Gaussian frequency shift keying) - Emission power: - Sensitivity: - Speed: Asynchronous: 2.1Mbps (Max) / 160 kbps Synchronous: 1Mbps/1Mbps - Security: Authentication and encryption - Profiles: Bluetooth serial port - Power supply: DC +3.3V / 50mA - Working temperature: -20 ~ +75 centigrade - Baud rate: 38400 Pin code: 1234 - Package includes: - 1 x Module