Product description:100% Brand new and high quality!This small size Bluetooth 4.0 TTL transceiver module allows your target device communicate with your iPhone/iPAD, IOS 6 or Android 4.3 above devices.It's easy to use and completely encapsulated.You can set it as slave or master.You can use AT command set the baudrate.Specifications:Ultra-low standby power consumption 90uA~400uACoverage up to 60 metersBuilt in PCB antennaPower input: 3.6V-6V DC(Can not higher than 6V)Size: 43mm x 15mmColor: BlueNet Weight: 4gPackage included:2 pcs HM-10 BLE Bluetooth 4.0 CC2540 CC2541 Serial Wireless Module