Fuction Voice compression; Double segment dual reception; Duplex relay station; Double menu operation; Built-in CTCSS/DCS; Two mode volume adjustment (mechanical and electronic); Capacitor and Dynamic Microphone; Tri-Band power adjustment (low , medium , high); Dust-Proof and Drop-Proof The shell is made of ABS material ， high strength， drop and dust resistance，can be used normally in harsh environments,larger size and more user-friendly design. Many Ways Quickly Charging：Equipped with 1Pack Wall Charger+Car Charger+USB Charger Cable, Allows you to charge anytime, anywhere, convenient and portable Long Range Communication：The signal waves have the ability to penetrate wood; steel and concrete; giving you better range and performance in urban environments and around buildings Power Source：Rechargeable Li-ion Battery packs:Equipped with 1pack Original 12000mAh Extended Battery+Battery Charger ,Support 5-7 days communication，Long standby time: 5-15 days Program After-sales Service：Program your AR-152 two way portable radio with a special firmware from radio shared!And provide technical guidance and after-sales service Specifications Frequency Range UHF/VHF Memory Channel 128 Groups Operation Voltage DC 7.4 V ±10% Battery Capacity large capacity battery (Li-Ion) Output Power High Power Transmission current ≤1800mA Receive Sensitivity 0.25μV (12dB SINAD) Rated Audio Power Output 1W @16 ohms Receive current ≤380mA Rated Audio Distortion ≤5% Connection for accessories 2 pin Kenwood jack Antenna impedance 50 Ohm