Thank you for using our products! To offer you better after-sale service, protect your legitimate interest, welcome to supervise us. We believe "Endless creativity, better quality". While we design and manufacture good products, we insist and focus on customers'' demand, offer high quality and effective products. We pay our wisdom, technology, service into our products.   Quality guarantee: 1.We do the idea of "Customers are first". The components and parts have one year warranty period, and the accessories(battery, transformer, charger, antenna, headset) have three months quality guarantee. 2.If there are nonhuman quality problems while the warranty period, you can keep warranty card/invoice to TGKK service center or its authorized repair station to enjoy the free warranty service. 3.Because of the machine or accessories'' nonhuman quality problems, you can keep warranty card/invoice to TGKK service center/the shop, to change new machine or accessories, within a week since you bought. 4.In TGKK service center or its authorized repair station, there is free warranty service.   Warranty regulations: 1.Warranty service is only effective under normal situation. If there are human factors, it needs maintenance cost. The human factors include: dismantling or modification、ordinary wear and tear 、mechanical damage、flooding water、using others'' accessories or antenna and so on. 2.The warranty period is from invoice''s date. 3.Don''''t tear up TGKK tag 、serial number tag etc, otherwise it will be not guarantee repair. 4.Warranty card and invoice can be warranty proof.   When your machine has problem: 1.You can call our service telephone:0086-592-5239071, to contact with our professional technical staff. 2.You can contact the retailer. 3.You can send the machine to our customer service center. Address:3rd Floor, Block B, Agricultural Science Institute of Heshan,Huli District, Xiamen, Fujian, China Post Code: 361001