10pcs SPPC bluetooth Serial Adapter Module Wireless Serial Communication from Machine AT-05 Replace HC-05 HC-06

Features: bluetooth V3.0 + EDR bluetooth Class 2 Built-in PCB radio frequency antenna Support UART interface 3.3V power supply Operating Frequency Band:2.4GHz -2.48GHz unlicensed ISM band bluetooth Specification: V2.1+EDR More document click to download:JDY-30 Applications: 1: bluetooth printer 2: bluetooth POS machine 3: intelligent home control 4: bluetooth wireless data transmission Package Included: 10 x SPPC bluetooth Serial Adapter Module