... Slim Power inverter with FM transmitter Over-voltage,low voltage,overload,short-circuit and over-temperature protection 100W Slim Power inverter with FMtransmitter Continuous Power: 80WMax power:100WPeak power ... Best useful efficiency: more than 90% USB output: 5V, 300mAFM transmitter: 88.1MHZ to 107.9MHZOver-voltage,lowvoltage,overload,short-circuit ...