• Support Digital/Analog Function
• Side Key Assignment Programmable
• High/Low Power
• VOX
• TOT
• TX Prohibited/RX only
• Busy Channel Lockout
• Emergency Alarm
• Talk Around
• Battery Save
• Write/Read Password
• Priority Scan Mode 
• Individual Call, Group Call, All Call
• Voice Encryption
• Remote Alarm, Remote Monitoring
• Remote Stun, Remote Kill
• Remote Activation

• Frequency Range : 400-480M1-14350-390MHzf 136- 174MHz
• Channel Capacity : 32 Channels
• Zone Space : 2 Channels
• Battery Capacity : 1800mAh(LI-ion Battery)
• Operation Voltage : DC: 3.7V ± 10%
• Operating Temperature : -20°C ~ 60°C
• Frequency Stability : ±0.5ppm
• Antenna Impedance : 50Ω
• Weight(Antenna & Battery Included) : 126g
• Dimension(WH'D)(Projections excluded) : 46 x 27 x 90mm 

Transmitter (ETSI EN 300 086 Testing Standard) 

• Output Power : 2W/1W
• Modulation Limiting : ± 2.5@12.5KHz/±5.0@25KHz
• Conducted Spurious Emission : -38dBm<1GHz1/-30dBm›1GHz
• FM Hum&Noise : 45/40dB
• Audio Distortion : ≤3%
• Frequency Stability : ± 1.5ppm

1. Datasheet - SFE SD618
2. User Manual - SFE SD618