Specifications: Made of high quality material, strong magnetism and durable.Round shape design, hard texture with stable performance.Perfect for sticking notes
Features: 18650 protected rechargeable li-ion lithium battery. Suitable for laser pointer, flashlight torch and other electronics products. Safe and environmental
CC1101 wireless RF transceiver 315/433/868/915MHZ + SMA antenna wireless moduleContinuous frequency band expansion:CC1100: 400-464 MHz and 800-928 MHzCC1101: 387-464 MHz