1PROGRAMMABLE FREQUENCY GENERATION: The Schumann Wave Generator produces accurate and stable frequencies using a programmable generator. 2MULTIPLE POWER SETTINGS: With 3 power levels, the low frequency pulse generator allows for adjustment according to individual preferences, with a maximum peak output power of 5W. 3MINIMAL HARMONIC DISTORTION: Unlike similar products on the market, our Schumann wave generator uses fewer harmonics, resulting in a purer sine wave output. 4LED POWER INDICATOR: The built in LED indicator displays power levels, with low, medium, and high settings represented by L, M, and H respectively. 5LONG BATTERY LIFE WITH USB CHARGING: Equipped with a built in 3.7V 4000mAH lithium polymer battery, the pulse generator offers extended standby time and can last up to 8 hours of continuous maximum power operation. It also supports USB charging and comes with a type c charging cable. 1 x Schumann Wave Generator 1 x Type C Cable