Features 1. Monitor: Enhances speech when the signal is too weak to be heard. 2. Squelch level: 0-9 levels, help you suppress background noise, improve signal sensitivity and sound clarity. 3. VOX: Allows you to free your hands when you're busy, and adjusting the VOX level controls background noise. 4. Scanning: You can find the correct frequency you are talking on and join communications easily and quickly. 5. Voice Prompts: Functions and features are easy to understand voice confirmation on selection is ideal for new users. Specification Pattern: US, EU, AU, UK Calling range: 3-5KM Storage channels: 128 channels Walkie Talkie Type: Convenient Maximum range: 5KM-10KM Material: Plastic Frequency range: VHF 136-174 MHZ, UHF 400-520 MHZ Dimensions: 5.8 x 1.1 x 3.2 cm Material: ABS Color: Black Size: 18 x 11 x 9.5 cm Weight: 420 g Package Include: Main unit Antenna Lanyard Back clip Battery Earphone Charger Instruction manual Headset