Shatterproof hidden display; easy to check channel and battery information without being exposed to scratches; more reliable to use ^^ 1200mAh lithium battery; has 10/15 hours of work time; desktop charger and direct charger; standard Type-C charging port; enables users to operate walkie-talkie for adults and communicate with team members continuously at work ^^ Durable walkie talkies for adults; feature a sturdy enclosure and uses ABS material; two way radios have a strong capability of withstanding 1-meter in height fall ^^ Secure communication; Keypad lock prevents users from accidentally changing the channel; unlock it by short pressing the side button; 50 CTCSS and 210 DCS; preset sub-audio provides more call options ^^ Clear sound quality; two way radio comes with a loud speaker and squelch function; the background noise is reduced and a clear voice is transmitted from the 2 way radio