Wireless Module This small size Bluetooth 4.0 TTL transceiver module allows your target device communicate with your Phone, for IOS 6 or Android 4.3 above devices.It's easy to use, You can set it as slave or master.You can use AT set the baudrate.Specifications: Ultra-low standby power consumption 90uA~400uA Coverage up to 60 meters Built in PCB antenna. This small size Bluetooth 4.0 TTL transceiver module allows your target device communicate with your Phone, for IOS 6 or Android 4.3 above devices. It's easy to use, You can set it as slave or master. You can use AT set the baudrate. Specifications: Ultra-low standby power consumption 90uA~400uA Coverage up to 60 meters Built in PCB antenna. Material:plastic colour:Blue+black Package Contents: 1 * Module Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!