ALLNET 4duino Serielles Bluetooth4.0 Modul CC2541 CC2540 4.0 BLE Bluetooth UART Transceiver Module Central Switching C Product Description 100% Brand New & High Quality Low standby power consumption being is 90UA-400UA Fast reaction rate is 0.4 seconds Can be used for android, apple, PC, MAC To send and receive no byte limit, up to 3 k Bytes per second,do not need to do MFI Android 4.3 system is being the perfect support. Pattern Name:C This module to the UART interface, has low cost, small volume, low power consumption, and high sensitivity, etc. Can realize power only with a few peripheral components. Package Contents 1 cc2540 cc2541 4.0 BLE bluetooth to uart transceiver Module