Core Functions: One-touch intercom: large size PTT button, no pressure for children to operate with one hand Clear voice: noise-cancelling microphone + high sensitivity speaker, clear calls even in noisy outdoor environments Durable design: ABS environmentally friendly material + anti-drop structure, in line with children's toy safety standards Portable and easy to use: lightweight body, weighing only 120g, suitable for children to carry with them. Technical parameters: Frequency band: 409-410MHz civilian frequency band Battery: 500mAh rechargeable lithium battery Standby time: 72 hours Charging interface: Type-C fast charging Applicable scene: Parent-child outdoor adventure Camping activities contact Children's role-playing Short distance safety monitoring