Amazon.com: DSD TECH HM-10 Bluetooth 4.0 BLE …
Low Energy: With HM-10 bluetooth 4.0 module, you can add Bluetooth features to your project and support iphone4s or later. DSD TECH Brand 4pin Base Board: Through this base board, leads to VCC, GND, TX, RX. You can be very convenient to connect to your arduino project. working voltage 3.6 V to 6V,Default rate of 9600.
DA: 76 PA: 10 MOZ Rank: 8