TE07 - Spy Loud Earpiece 2011 New-Designed. Bigger volume, miniature size and skin color. Apply to all inductive transmitters. Key Features Extremely loud sound than other models Miniature size, completely invisible deeply into ear canal Skin color, enhanced hidden function Wireless receiver for secret communication purpose Powered by tiny #337/#416 button battery 5~6 hours battery life support Easy operation (user manual available) 2011 newly designed earpiece. The most advantaged audio boost technology. Give you new earpiece and loud voice. TE07 earpiece can produce loud sounds even is works with basic inductive neckloop. It also has skin color and tiny size. Aug 2011 enhanced transparent thread. There is a mini coil inside spy loud earpiece TE07. While mini coil received magnetic signal, the embedded circuit system will transfer wireless signal to audio sound. The embeded micro audio boosting module will enhance audio output. Then spy loud earpiece user will hear loud voice from the internal mini speaker (receiver). _ + With 12 months quality warranty and lifetime tec-support Technical Specifications SKU TE07 Frequency 200-5400MHz Staturated Output 115dB (OSPL90dB) Distortion Rate < 2% S/N Ratio at 2KHz > 5KHz Peak Value 50dB Sensitivity Limit < 90dB Working Current 0.8mA Battery Type Button Battery #337/#416 Battery Life 4~5 hous (Original Sony Battery) Capacitor Mechanical Specifications VDC Warranty Constant AC Packing Size/Weight 52x42x14mm / 0.8g Earpiece Size/Weight 6.4 x 6.8 x 10.6 mm / 0.5g Operating Temp Maintain -10 ~ 60C / Operating 0 ~ 40C Humidity 5% ~ 80% The default warranty of TE07 earpiece is 12 months since ship date. Repair period is 12 months. Warranty will be invalid in below conditions: 1. Passed more than 12 months since ship date. 2. Open earpiece case or and change circuits with our authorization. 3. Other kinds of problems caused by wrong operations or use others power adaptors.