Wireless ModuleThis small Bluetooth 4.0 TTL transmitter module allows your target device to communicate with your phone, for IOS 6 or Android 4.3 and later devices. It is easy to use, you can set it as slave or master. You can use AT to set the baud rate. Specifications Ultralow standby current consumption 90uA400uA Range up to 60 meters Builtin PCB antenna.This small Bluetooth 4.0 TTL transmitter module allows your target device to communicate with your phone, for IOS 6 or Android 4.3 and later devices.It is easy to use, you can set it as slave or master.You can use AT to set the baud rate.Specifications Ultralow standby power consumption 90uA400uA Range up to 60 meters Builtin PCB antenna.Material plasticColor BlueblackPackage contents1ModuleOnly the above package contents, other products are not included.Note Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is13 cm.