Features 1、Low Frequency: Able to generate 7.83Hz ultra low frequency with high accuracy and good stability, simple and reliable. 2、Reliable Work: Comes with high stability pulse chip, correction capacitor as well as multi loop adjustable resistance. 3、Practical Use: Allows for broad application, especially for indoor, including but no limited to bedroom, office, etc. 4、Good Material: Adopting premium resin and alloy materials with acrylic casing, has great durability for long term uses. 5、Easy Carrying: Designed to have light weight and compact size, the easy carrying and storage makes it an ideal gift. Specification Item Type: Ultra Low Frequency Generator Material: Resin, acrylic, alloy. Transceiver Module Size: Approx. 102 x 80mm / 4.02 x 3.15in Frequency: 7.83Hz Rated Voltage: DC 5V Rated Current: 0.5A Package List 1 x Transceiver 6 x Acrylic Board 1 x Connecting Cable 5 x Screw 5 x Nut 5 x Standoff