Used item, it is sold as pictured, please STUDY MY ACTUAL PICTURES of this item NOT THAT GENERIC STOCK ONE to see what?s included with this sale and its overall condition. Do your research before buying to be sure it's what you need, there is a restocking fee for my items. If you have any questions, please contact me BEFORE buying. Pay attention to the posted estimated delivery time, all my items are shipped USPS SIGNATURE REQUIRED UPON DELIVERY for security. Please buy accordingly, Thanks Additional Details ------------------------------ Product description: Check Mate SPL Meters CM-130 Check Mate SPL Meters CM-130 Today, there is a need to know just how loud your surroundings really are. The CHECK MATES are inexpensive tools everybody should own. The CM-140 and CM-150 meet the same IEC 651 Type 2 standards of SPL meters that cost 5 times as much or more. Windscreen and battery are included with each of the CHECK MATE models. The CHECK MATE series SPL (Sound Pressure Level) meters, first introduced in early 2003, allow musicians, sound contractors, and others to measure SPL in decibels (dB). A decibel is defined as the unit for measuring relative loudness of a sound. We have expanded our line from one CHECK MATE SPL Meter to four products in the category. We have sold thousands of units to working musicians, DJs, police departments, sound contractors, racetracks, etc... FEATURES: Mini Size Low Cost High Performance MAX Function Level Range Display Resolution 0.5 dB SPECIFICATIONS: Microphone: oe" Electret condenser microphone Accuracy: 2 dB (under reference conditions 94dB @1KHz) Level Range: 1 = 40 ~ 70 dB 2 = 60 ~ 90 dB 3 = 80 ~ 110 dB 4 = 100 ~ 130 dB Frequency Weighting: A , C Time Weighting: Fast , Slow Dynamic Range: 30 dB Frequency Range: 125Hz to 8KHz Battery Life: 9V Battery 110 hours (included) Operation Temp.: 0C~ 40C (32 to 104ºF) Storage Temp.: -10C~ 60C(14 to 140ºF) Dimension: 9.1" 2.1" 1.3" (232mm54mm34mm) Weight: Approx. 0.37lbs. (170g)(including battery)