Our Company is in China MainLand, so we try our best to give you RF products with best value for money and high quality. You will buy all the products with same China price. All the world costomer can buy our products in Taobao or directly from our company. RF equipment is sometimes very complex, so you can learning from the YouTube, TikTok, Bilibili with our good training course. After you buy our products, we will also give you best support by wechat with audio and video. Do not hesitate to directly contact us in Taobao or Telephone or Email.