Brand KAIYUE Model 9111 Color Green Material ABS Quantity 1 Frequency Range 100M Channel 1 Frequency Stability 2.5 ppm Output Power 4 W Working Voltage 9 V Working Distance 100 m Battery Capacity 9 mAh Features Walkie Talkie Other This set includes one watch design walkie talkie and one headset design walkie talkie; Each powered by 6 x AG10 batteries (included); The black button on the right side of the watch is the switch press the left button to speak. So is the headset one. The antenna can be lengthen to cover further place. Packing List 1 x Watch Walkie Talkie 1 x Headset Walkie Talkie 12 x AG10 batteries