Product Details: Type: complete machine Category: Handheld Table Frequency range: 7 Bands (MHz) RF output power: 5 (W) Theoretical communication distance: 5km-10km (km) Working voltage: 7.4 (V) Battery type: lithium battery Dimensions: 123 x 58 x 31 (mm) Battery: 3200mAh Package Contents: Walkie-talkie X1