Features: Auto-detection mode to detect live on the go. Laasser Detection: 10cm-10m (the naked eye can identify red flashing). Radio Detection: 5cm-10m. Wireless Sweep: 1MHz-6.5GHz Frequency detection range. Signal strength indicator to quickly find the source. Sensitivity adjustment to narrow or widen the detection range. Detection Modes: 1. Laasser. 2. Vibration (mute). 3. Beep. 4. LED display. 5. Headset (included). Built-in rechargeable battery with low-voltage warning. Rubberized coating, high temperature resistant. Built-in clock. Specification: Laasser detection camera distance of 10cm-10m. Radio detection of camera range 5cm-10m. Power in the 50mv-200mv detection range 30-50cm. Power in the 300mv-600mv detection range 100-200cm. Power in the 800mv-1200mv detection range 300-800cm. Power: built-in lithium polymer battery 450mAH. Current consumption: 8mA. Probe laasser wave length of 920mm. Receive frequency range 1MHz-6500MHz. Special dedicated optical lens filters. Material: ABS plastic. Package Includes: 1 x Sensors. 1 x AC Charger (US/EU Plug). 1 x Earphone. 1 x User Manual (English)