Display: 0.96-Inch Fully Automatic Air Conditioning Working Frequency: 1.8-55 Mhz Built-In 3.6v Lithium Battery 1350mA Usb Charging Current: 1A Professional Installation Is Required To Avoid Product Damage. Maximum Current: 300mA Maximum Power: 120W Maximum Measurable Power: 150W 1w: You Need To Start Setting The Minimum Power Minimum Possible Measured Power: 0.1W Measurement Steps For Power Below 10W: 0.1W Power Measurement Steps Above 10W: 1W Power Measurement Accuracy: 10% Specified Maximum Inductance: 8.4 Uh Capacity Minimum Installation Step Size Of Inductor: 0.05μH Maximum Installed Capacity: 1870 Pf Capacitor Minimum Installation Steps: 10pf Atu Antenna Tuner Product Instructions: Synchronize The Latest 3.1 Version Of Firmware Configuration Interface, No Need To Flash Repeatedly, No Need To Buy A Burner Optimize The Power Measurement Calibration Algorithm To Make Power Measurement More Accurate Configure Interface Description Entry Method: Long Press The "Tune" Button And Turn On The Tail Power Switch At The Same Time. After The Interface Displays "Options", Release The "Tune" Button To Enter The Setting Interface. Operation Method: Short Press The "Tune" Key To Modify The Current Value. Long Press The Tune Key To Switch Setting Items. Colour:black Material:ABS Package Contents: 1 x Antenna Tuner 1 x Data Cable (Random Color , don't accept the specified color) 1 x Manual In Chinese And English Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.