Feature: 1. Clear Sound: Super strong signal, long range communication, stable transmission, high sensitivity, providing you with clear sound. 2. High Quality Material: Walkie talkies are made of high quality ABS material, wear resistant, high strength, not easy to damage, sturdy and durable. 3. Excellent Performance: Professional manufacturing, can withstand shock and vibration in harsh environments, have a long service time. 4. Portable Design: Easy to carry, compact and exquisite, lightweight, you can put into your pocket or bag, more convenient and practical. 5. Wide Application: Suitable for construction site, security property, hotel, car 4S shop, cycling self driving travel, etc, meet communication needs. Specification: Item Type: Mini Walkie Talkies Material: ABS Application: Suitable for all walks of life, construction site, security property, hotel, car 4S shop, cycling self driving travel, etcFrequency Range: UHF 400-470MHz Storage Channel: 16 groups Working Voltage: DC3.7V Frequency Stability: ±2.5ppm Operating Temperature: -20℃ to +50℃ Working Mode: Same frequency simplex Antenna Impedance: 50Ω Transmission distance: ≤6km Power: ≤5W Transmit: Output Power: ≥2W Emission Current: ≤1400mA Maximum Frequency Deviation (Broadband): ≤5KHz Stray Power: ≤7.5uW Adjacent Channel Power: ≤-65dB Signal to Noise Ratio (Broadband): ≥-45dB Sub Audio/Digital Sub Audio Bias (Broadband): 0.7±0.1KHz Modulation Sensitivity: 8-12mV Receive: Sensitivity: -122dBm (12dB SINAD) Audio Power: ≥350mW Audio Distortion: <10% Intermodulation (Broadband): ≥65dB Adjacent Channel Selectivity (Broadband): ≥65dB Clutter Suppression: ≥65dB Receiving Current: ≤350mA Signal-to-noise Ratio (Broadband): ≥-45dB Sub Audio/Digital Sub audio Bias (Broadband): 0.7±0.1KHz Modulation Sensitivity: 8-12mV Plug Voltage: AC100-240V Battery Type: 2 x 4800mAh lithium batteries (Built in) . Package List: 2 x Mini Walkie Talkies2 x Charging Line2 x Battery1 x Power Adapter Note: 1. Do not place the product in an environment with excessive corrosion, humidity and high temperature. 2. Please charge according to the voltage in use. Using other voltages may cause fire and damage to the product.