USB optical mouse with Telescopic line 
| 1.Samples charge:According to your design . Sampling time:3-5days | |
| 2.Samples charge:Free for Existing Samples Sampling time:1day |
| 1,High quality guarantee. | ||||
| 2,Strong packing team to double check the quality during packing the finished products. | ||||
| 3,All employee Gets strict technical training before starting to work. |