This BOSCAM TS351 FPV 8CH 200mW 5.8GHz Wireless AV Transmitter Set with Antenna? which is a built-in microphone audio pick up device with high-frequency PLL stabilitymust be highly recommended if you are someone crazy for free flight. It features low harmonic radiation? quick response? easy operation and control. Also? the compact and lightweight design makes it easier for you to carry it when you are going outside. A nice spare part for all helicopter lovers! Don&acute;t hesitate to take one!                                    Features            BOSCAM 8CH 5.8GHz FPV wireless transmitterWith sensitive and stable performance? it is practical and durableSmall size? lightweight? easy to carryWith it? you can control the helicopter easilyIt features quick response and easy operationA basic and necessary spare part for your helicopterThe TS351 transmitter is a built-in microphone audio pick up device with high-frequency PLL stability8-channel selectableLow harmonic radiationDirect input analog audio and video signals                                                             Specifications             Working Frequency     ISM 5.8GHZ    <br> Available Channel     8CH    <br> Power Supply     DC 7V- 12V    <br> Consumption Current     100mA/Max.    <br> RF Power     200mW    <br> Video Signal Impedance     75Ω    <br> Color     Silver    <br> Dimensions     (1.77 x 1.02 x 0.71)" / (4.5 x 2.6 x 1.8)cm (L x W x H)    <br> Weight     1.80 oz / 51 g     <br>                                                             Package Includes            1 x Transmitter<br>2 x Connector Cable<br>1 x Antenna<br>