Wireless ModuleThis small size Bluetooth 4.0 TTL transceiver module allows your target device communicate with your Phone, for IOS 6 or Android 4.3 above devices.It's easy to use, You can set it as slave or master.You can use AT set the baudrate.Specifications: Ultra-low standby power consumption 90uA~400uA Coverage up to 60 meters Built in PCB antenna.This small size Bluetooth 4.0 TTL transceiver module allows your target device communicate with your Phone, for IOS 6 or Android 4.3 above devices.It's easy to use, You can set it as slave or master.You can use AT set the baudrate.Specifications: Ultra-low standby power consumption 90uA~400uA Coverage up to 60 meters Built in PCB antenna.Material:plasticcolour:Blue+blackPackage Contents:1 * ModuleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.