specifications

　　frequency: 136-174mhz 

　　output power: 3.5w/1w

　　number of channels: 2*128

       power supply: dc7.4v

　　explosion-proof battery pack: 2600mah (li-ion)

　　waterproof and dustproof level: ip65

       frequency stability: ±2.5ppm

       operating temperature: -20℃~+60℃

       antenna impedance: 50Ω

　　dimensions (wxhxd): 61 ×126×37mm

　　weight: 260g (with belt clip and antenna)