ITEM NAME:DX-BT18 Bluetooth Dual Mode Module For SPP2.0 + BLE4.0 Transparent Serial Port d Descriptio n Specifications: Bluetooth Module Serial Port DX-BT18 Dual-Mode SPP2.0 + BLE4.2 Transparent Compatible HC-05 06 Slave Mode Bluetooth Protocol: Bluetooth 4.2BR/EDR+BLE+2.4GHZ-Attribute Working Frequency: 2.4 GHz SM Band Communication Interface: UART Power Supply: Minimum: Maximum 1.8V: 3.6V (3, Recommended 3v) Communication Distance: 30-40 M (Open Environment) Pairing Code: 1234 (SPP Protocol Is Valid) Serial Port Parameters: 9600.8 Data Bits. 1 Stop Bit, Invalid Test, No Flow Control Package Included: 1 * Bluetooth Dual Mode Module Whatever the ending's perfect or not, you can't disappear from my world DX-BT18 Bluetooth Dual Mode Module For SPP2.0 + BLE4.0 Transparent Serial Port.Bluetooth Module Serial Port DX-BT18 Dual-Mode SPP2.0 + BLE4.2 Transparent Compatible HC-05 06 Slave Mode. Bluetooth Protocol: Bluetooth 4.2BR/EDR+BLE+2.4GHZ-Attribute. 1 Bluetooth Dual Mode Module.