1.0 Watt Output Power. 900 Mhz ISM FHSS Frequencies. Rechargeable Lithium Ion Battery Pack Included. Uses Eavesdrop Resistant FHSS Technology. Please allow us the opportunity to resolve any issues before opening disputes and/or leaving feedback.If the item includes an ac power adapter for use, it will be 120 volts. Please ensure that this product is compatible with the standards within your country before purchasing.