Greaval Rechargeable Long Range Walkie Talkies UHF 400-470Mhz 16 Channel Two Way Radios with USB Charger for Adult (4 Pack)

🔻Battery performance(full charge): Standby Mode..........5-7 days Typical Use.............1-2 days Continual Use........8-12 hours Charging Time........3-4 hours 🔻Signal performance: Open Fields............2-3 miles Residential Area.......0.6-1.5 miles Inside Buildings.....1-50 floors(Except basement) 🔻Specification: Antenna Impedance: 50ohm Battery Type: Li-ion battery Battery Capacity: 1500mAh Rated Voltage: DC 3.7V USB Charging Base Input Voltage: 5V 0.5~1.2A (Compatible with power bank, cell phone chargers) USB Charger Adapter Input: AC 100~240V, 50/60Hz Output: DC 5V, 1A Frequency Range: UHF 400-470MHz Channel Memory: 16 (Preset) Output power: ?5 Watt Modulation: F3E Spurious Emission: 65dB FM Noise: -45dB(W) -40dB (N) Audio Distortion: 5% Transmitting Current: 1.3A CTCSS/DCS Codes: 105 codes Emergency Alarm: supported Low battery alert: supported Power save mode: supported Voice notice: English Channel Programmable: yes Extra Features: LED flashlight Working temperature: -30~+60°C Item Weight: 160 gram/ 5.6 Oz Item Dimension: 60[L]×33[W]×115[H]mm 🔻Package Content: 2 × Walkie-talkie 2 × Rechargeable battery 2 × Antenna 2 × Belt clip 2 × Hand strap 2 × USB-plug charging base 2 × USB charger adapter 1 × User manual