1.5 hours charging time; retevis RB666P fast charging walkie talkie can be charged fast as the mobile phones; compared with other traditional chargers; charging efficiency is increased 168 hours standby; walkie talkie has a built-with 1500mAh li-ion battery; which provides up to 31 hours' work time; you can use RB666P for a whole day without worries; regardless of outdoor activities or work use VOX Hands-free; 9-level VOX function allows you to transmit directly without pressing the PTT key; you can communicate with mates while working; especially when you are busy Pair one channel; you won't adjust the channel and CTCSS/DCS to communicate with others; press the side key 1 and power on on channel 1 to detect the frequency; once detected; you can make connections for efficient work communication Emergency alarm; walkie talkie includes remote and local two alarm modes; long press the side key 1 to turn on either of them; seek help and get out of trouble in emergencies K 2pin earpiece; two way radio comes with earpiece increases the convenience of communication; you can transmit and receive through the earpiece; making communication clearer Longer work time; battery save function conserves the battery power; low battery alert prompts timely charging; extends the battery life for extended use.
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