Talkie Walkie - 400-470MHZ -BlackSmall and practical, it fits easily in the hand, measures 4.3 inches tall without antenna (antenna length: 5.24 inches), 1 inch thick, 2 inches wide, 5.5 oz light weight, solid construction, water resistance and easy to use for all ages, 2 watt power output; each radio has a removable belt clipThe frequency range is from 400 to 470 MHz UHF; 16 pre-programmed channels; each radio has an identical frequency on each of the 16 channels taken out of the box; 16-position mechanical rotary switch channel selector; when you turn the knob to change the channel, a voice synthesizer tells you the channel number, the channel frequency is programmable in the frequency range; you can program any signal among 50 CTCSS tones and 105 CDCSS tones on each programmed channel.Each radio comes with a 1500 mAh rechargeable Li-ion battery and a charging station; the battery life is determined by the transmission time; it lasts about 8 to 96 hours on a single charge, depending on the amount you transmit; you can charge the battery alone or charge the radio with the battery installedHigh quality built-in radio speaker with powerful, crystal clear sound; Push-to Talk button and microphone built into the radio; each radio comes with a single earpiece (foam piece included) with a built-in microphone and a Push-to-Talk button; the earphone plug is type K, 3.5 mm and 2.5 mm; when you plug in the earpiece, all sound is transmitted to the earpiece and the radio speaker is silent; the radio has a VOX function.call 0797542761