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. Please note: function can only be using after the controller needs be successfully paired with the TV. 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: Less than 30uA Power consumption: About 20mA Product size: 162 x 42 x 18mm Model: Backlit color:Black Material:plastic Package Contents: 1 x Air Mouse Remote Control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.