Onn. 16 Miles Walkie Talkies 2pk with Two Way Radios, LED Light, Rechargeable Auto squelch system mutes the background noise to get crisp and smooth sound dimensions: 6.9" x 2.1" x 1.2" Product weight: 0.22 pounds Hands free function With three AA alkaline batteries Long range in different terrains ( Up to 1 / 8 / 16 miles ) Batteries included are not rechargeable, Rechargeable batteries need to be purchased separately Q: Are the walkie-talkie batteries rechargeable? A: The battery that comes with the walkie-talkie is Alkaline and cannot be recharged. However, the product comes equipped with a charging port, enabling you to recharge the device with Ni-MH battery, which the consumer should purchase separately. Q: The design of the buttons needs to be simplified. Should the product enter set-up mode just to adjust the volume? A: The product comes with a user manual which can help explain the functions of the buttons. There is no need for the product to enter set-up mode just to adjust the volume. The volume can be easily adjusted by pressing the volume up/down button. Q: Why is the receiving distance short? A: 16 miles is the ideal distance when no obstacles are around. However, when the usage scenario is downtown or a suburb, obstacles block the signal, and the receiving distance decreases to 1 mile. Please refer to the declared receiving distance of different usage situations on the package or the user manual. Q: When the battery polarity is reversed, the product becomes hot. A: It is important to follow the instructions while setting up the battery so that it is placed in the correct orientation as indicated by the positive and negative marks. Q: The battery life is too short. A: The 1.5V AA alkaline battery can support eight hours for a 0.5W speaker. However, users need to replace the battery with new alkaline or rechargeable batteries when the battery that comes with the walkie-talkie run out.