USB CHARGING: USB charging replacement for disposable batteries, long battery life, tightly locked battery to avoid falling off and heating Longer intercom distance: clear intercom from a distance of 5 miles on flat ground, dedicated channel to ensure your child& 39;s safety during use EASY TO USE FOR CHILDREN: Size for kids 3-12 years old and weighs only 80g. Simple one-button operation, with key lock function, drop-resistant and durable Adventure Toys: Create your team channel, it& 39;s the perfect outdoor adventure toy for boys and girls, whether it& 39;s at home, outdoor camping or adventure games PERFECT GIFT: Children& 39;s walkie-talkies can help parents find a fun and inspiring way to spend time with their children and listen to their inner voice, enhancing family emotions. The perfect gift choice for kids