P8668U Function SAME TO TYT MD380 UHF  (100% MADE BY TYT) Main Function:   Use TDMA digital which doubles the number of users on a single licensed   12.5KHz channel comply with DMR digital protocol    Private call, group call, all call   CTCSS / DCS, Auto scan   English Voice Prompt    Wide narrow selection   High low power    Emergency Alarm   Time out timer   Encryption  ■Remote kill/stun/activate ■Priority Scan ■Voice Prompt ■Complying with digital protocol ETSI TS102 361-1.-2.-3 ■Power-on protection ■Compatible with Mototrbo Tier I&II ■Color LCD display ■DTMF decoding and encoding ■Text messages in digital mode ■Updated software available for new features ■Encryption ■Analog ue and Digital mode  Combined ■Updated to 1000 channels ■Programming multifunction key ■Private call,group call and all call ■Built-in CTCSS/DCS Specifications: Technical parameters Item number  P8668 General Frequency Range 400-480MHz Channel No.  1000 Antenna impedance 50Ω Antenna High and gain Operating Voltage 7.5 vDC Operating Temperature -30~+60 Dimension(W x H x D) 131x61x38mm Battery 2000mAh Li-ion Transmitter Output power ≥5W(H) ≥1W(L) Vocoder type TDMA Frequency Stability                    1.0 PPM Adjacent channel power ≤-60dB Spurious Radiation Antenna:9KHz-1GHz ,≤ -36dBm 1GHz-12.75GHz ,≤-30dBm Hum and noise -40dB 12.5KHz 4 FSK Digital Mode  12.5KHz(data only):7k60FXD  12.5KHz(data+voice)7k60FXE Receiver Digital sensitivity 0.3uV/-117.4dBm(BER 5%) 0.22uV/-100dBm(BER 1%) Audio distortion 3%(TYPE) Audio power 1W Autio response =1dB-3dB Adjacent Channel Selectivity Tia603C:65dB,ETSI:60dB Spurious           Tia603C:75dB,ETSI:70dB Co Channel rejection ≥-12 dB     (***對講機只供出口用/Radio for Export Only***)     Enquiries Please call the Customer Service Hotline / Whatsapp: 54457217 / Email: cs@409shop.net