Details: MX-WH09 is the model. Versions 3.0 and 5.0 are wireless. The screen is 2.2 inches in size. the IPS 320 x 385 resolution. 32MB of FLASH memory. System compatibility: iOS 9.0 or Android 5.0. Time on standby: 7–15 days. Time needed to charge: two to three hours. 260mAh is the battery's capacity. Wireless is the charging method. Full touchscreen is the method of operation. Dimensions: 12 x 44 x 49 mm. 55g in weight.