Condition: New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging ... Brand: Does not apply origin: Mainland China hign-concerned chemical: None power source: 3.7V Lithium-ion Battery power input: DC 10-18V detecting range: 0.6-30 Meter sonar coverage: N/A language: English sonar frequency: Wireless: 125Khz Type: Does not apply