Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si Features: 1. The Main Knob Fine-Tuning 0 - 180 Scale, From The Low Frequency To The High Frequency March, The Knob Selects The High And Low Frequency, Upward High, Downward Low. 2. Aluminum Alloy Shell, Tie Rod 1.3 Meters. 3. Bottom Output Bnc Male, Suitable For Domestic Or Of Short-Wave Radio. 4. Portable Adjustable Transceiver Antenna For Shortwave Radio 20w 5. Professional Installation Is Required To Avoid Damage To The Product Description: 1. Rated Power: 20W 2. Receiving And Transmitting Range: Hf3-30mhz Continuously Adjustable 3. Both Receiving And Transmitting: Fm.Air.Vhf.Uhf Can Not Be Adjusted 4. Vswr Value: 5.7.14.21.29 Less than2 Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use size: The telescopic antenna retracts 22cm and extends 130cm Material: Aluminum alloy + stainless steel colour: As shown Package Contents: 1 x Radio Transceiver 1 x Antenna 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.