IC-M25 Marine Walkie Talkie VHF Marine Radio 5KM 5W Waterproof Handheld Transceiver For ICOM. Use communication technology. Compact structure and light weight. Professional dustproof and waterproof walkie talkie. Thin, light, and cost-effective. It has a compatible light and thin appearance and feel. Even if it falls on the water surface, it can still float on the water surface to work, providing users with excellent performance Large-screen LCD with interface is easy to operate. The LCD screen can display channel number and status icons. The buttons on the front panel are intuitive and easy to operate. USB charging. Standard USB connector is used for IC-M25 charging. Cigarette lighter and power bank can also be used to charge IC-M25 Long duration time-11 hours. Built-in 1500mAh lithium ion battery. Duty cycle: Tx(Hi):Rx:standby=5:5:90. 550MW audio output. IC-M25 provides a loud speaker output, 550MW (nominal) audio output, and the received sound can be very clear and loud. Used in road trips, work, activities, photography teams, police, etc. Provides more convenient communication to help you enjoy protoplasmic calls Technical Index: Frequency range: Tx: 156.025-157.425MHz; Rx: 156.050-163.275MHz. Usable frequency: INT, USA, CAN and WX channels. Working mode: 16K0G3E (FM). Power requirement: 3.7V DC mark. Current consumption: Tx: 2.3A; Rx: 300mA/200mA (maximum volume). Operating temperature: -20°C to 60°C. Antenna resistance: 50Ω. Size (W x H x D): 56.6 x 134.2 x 30.5mm/2.2 x 5.3 x 1.2inch (not including the size of antenna) Transmitting Index: Output power: 5W (approximately)/1W Frequency modulation degree: ±5.0kHz Frequency stability: ±10ppm Spurious emission: -68dBc nominal Adjacent frequency power: 70dB Parasitic adjustment: 40dB Receiving Indicators: Sensitivity: 0.25μV nominal (12dB SINAD)