Baofeng BF-666s walkie talkie in Dhaka, Bangladesh.

Main Features

• CTCSS / CDCSS: Advanced coding systems for secure communication.
• VOX Function: Hands-free communication with voice-activated transmission.
• Voice Prompt: Audible notifications for easy operation.
• PC Programming: Customizable settings via computer interface.
• Emergency Alarm: Built-in alert system for emergencies.
• Desktop Charger: Convenient charging dock.
• Battery Save: Power-saving mode to extend battery life.
• Low Voltage Alert: Notifications for low battery levels.
• Time-out Timer: Prevents accidental over-transmission.
• Flashlight: Integrated light for low-visibility situations.

General Specifications

• Frequency Range: UHF 420-450MHz (Single band)
• Channel Capacity: 16 channels
• Channel Spacing: 25KHz
• Operating Voltage: DC 3.7 V
• Battery: 1500mAh Li-ion battery
• Battery Life: Approximately 8 hours (5-5-90 duty cycle)
• Frequency Stability: ±2.5ppm
• Operating Temperature: -30°C to +60°C
• Antenna Impedance: 50Ω
• Dimensions: 115×60×33 mm (with battery, without antenna)
• Weight: 180g (with battery and antenna)
• Communication Range: Up to 6km

Receiver Specifications

• Sensitivity: ≤0.20 uV (12dB SINAD)
• Selectivity: 55dB/50dB
• Intermodulation: ≥65dB
• Adjacent Channel Selectivity: ≥60dB
• Spurious Response: ≥60dB
• FM Noise: 45dB/40dB
• Audio Power Output: 1000mW
• Audio Distortion: ≤5%
• Standby Current: 15mA

Transmitter Specifications

• RF Power Output: <5W
• Modulation: F3E
• Spurious Emission: ≤65dB
• FM Noise: ≤-45dB(W)/≤-40dB (N)
• Audio Distortion: ≤5%
• Transmitting Current: ≤1.3A

Standard Package Contents

• Walkie Talkie: Device for communication.
• Li-Ion Battery: Rechargeable battery for power.
• Antenna: For enhanced signal reception.
• Belt Clip: For easy carrying.
• User’s Manual: Instruction guide.
• Charger: For recharging the battery.