Fantastic / novel / smart designed, excellent to the feel With strong practicability, applicable for both housing and traveling use. Environmental friendly, no dry batteries needed. With delicate configuration and high efficiency, power generated by cranking handle. Best Emergency tool for outdoor travel or climbing or camping. Specification Transmiting Power: 0.5W Frequency range: FRS: 446.00625MHZ~446.09375MHZ PMR: 462.5625MHZ~467.7125MHZ Talk range: Up to 3km (depending on different conditions) Modulate scan: 2.5KHz Receiving Sensitivity: 12dB S/N-103dBM Audio output: 200mW Talk channel: 8 channels for Europe, 14 channels for USA Low battery alert: √ Call ring: 9 kinds Sound for talk finishing confirmation: √ Input power: DC 6V Life cycle of rechargeable battery(Lithium, 500mAH) inside: With full power: About 1.5hr for talking; 8hr for receiving; 10hr for standby After One min cranking (120 rounds/min): About 2min for talking; 5min for receiving; 10min for standby Weight: 135g Product size(mm): 125*70*40 Packaging: 100 pcs per carton, measurement, 47X38X28cm, gross weight, 16.00kgs