1. Voice search function. 2. With 3-Gyro + 3-Gsensor, it's more convenient to easy operate in horizontal and vertical mode. 3. IR learning function, power key and four-color buttons can be programmed. Specification: Material: plastic + silica gel Color: Black Transmission mode: 2.4G RF wireless Sensor: 6-axis gyroscope Battery type: AAA * 2 (not included) Number of keys: 33 Transmission distance: 10m Standby power consumption: < 30uA Power consumption: About 20mA Product size: 162 * 42 * 18mm Model: Backlit, Standard