Main Features● Strong penetration, effective use 5w power range of 3-5km● Wide range of uses, security, engineering, warehousing, service industry the use of either● Rugged housing, the housing carbonate polymerization using a high strength, strong resistance to fall, dust● Independent smart , digital audio encryption technology, to prevent interfering with, preventing string frequency● LED lighting comes● INC noise reduction technology, effectively reduce ambient noiseBrand: Baofeng Model Number: BF-888S Frequency Bands: UHF Channels: 120 to 499 Channel Channel Spacing: 25khz Frequency Stability : plusmn2.5ppm Feature: Long-lasting Battery Life Main Functions : English voice prompt,PC Programmable,Time-Out T-imer (TOT) Operating temperature : -30degc- + 60degc Antenna Impedance : 50 OhmOutput Power (high/low): 5 mePackage weight: 0.558 kg Product size (L x W x H): 21.00 x 4.50 x 2.50 cm / 8.27 x 1.77 x 0.98 inches Package size (L x W x H): 12.00 x 5.80 x 3.30 cm / 4.72 x 2.28 x 1.3 inchesPackage Contents: 1 x Walkie-talkie, 1 x Handing Strip, 1 x Earphone, 1 x Belt Clip, 1 x Antenna, 1 x Charging Base, 1 x English Manual