This is the second generation Bluetooth relay launched by DSD TECH. The second-generation relay supports many new features such as timers and security codes. Specification: Built-in DSD TECH SH-HC-08 Bluetooth 4.0 BLE module compatibility:supports iOS devices(iPhone and iPad) and Android 4.3 and later devices. Control distance up to 10m (open space environment) Module operating voltage(VCC):DC 5v/12 v DC control maximum voltage: DC 30 v Switching control maximum voltage: AC 250 v Maximum load per channel: 600W About APP: For Android : please search "DSD TECH Switch" in the Google Play. For iOS Devices (iPhone ):please search "DSD TECH Switch" in the Appstore. Precautions: 1,This Bluetooth relay is Bluetooth 4.0 specification and is not compatible with any Bluetooth 2.0 SPP device. 2, the maximum load power should not exceed 600W. The relay may be damaged when the load exceeds 600W. 3, You can make DSD TECH's APP, or you can write your own APP to control this Bluetooth relay. Programming instructions are open. 4, The relay only outputs control signals and does not directly output power. About warranty: DSD TECH provides one year warranty service and Lifetime Technical Support. If you have any questions about this product, please contact us. We will reply you within 24 hours. See more

DSD TECH provides a one-year warranty on this Bluetooth Relay. If you have any questions, please feel free to contact us. Free APP for Android Phone and iPhone, please search "DSD TECH Switch" in the Google Play or AppStore. 4 Channel relay.Support 5V and 12 power supply.Support switching DC and AC. Built-in DSD TECH Bluetooth 4.0 BLE module, Supports iOS devices(iPhone and iPad) and Android 4.3 devices or later. More features: Compared with version 1, V2 adds many functions. Such as security authentication and timer functions.