The advantage of using state of the art technology is fundamental in situations where covert communication are required. This extra small Bluetooth micro earpiece and sensitive microphone permits you to receive real time information or communications without being noticed. Students, Law enforcement officers, Private investigators, Businessmen, Gamblers, Politicians, all can find a use for this incredible new device.Earpiece SpecificationsMini wireless earpiece (105 earpiece) receives signal by inductive coil, across electromagnetic fields Receiving distance: 50– 70 cm Standard Zinc-air battery: type SONY 337 Battery life: about 5 hours Audio bandwidth: from 300 Hz to 4 KHz Distortion: <2% Size: 3x5x7mm Weight: 0.8g (battery included) Working frequency: all frequencies Distance between inductive coil and Mini wireless earpiece: about 70-100 cm. Bluetooth SpecificationsBluetooth standards: Version 2.0 Operation frequency range: ISM 2.402 to 2.480GHz Support Bluetooth Profiles: HFP1.5 & HSP1.0 Transmitted Power: Class 2 Receiving sensitivity: -82dBm Wireless connection range: MAX 10 meters Charger output specification: DC 5V/300mA Built-in rechargeable Li-ion battery: 3.7V 80mAH Normal charging period: <2 hours Hands-free talk time: >8 hours Microphone sensitivity: -42dB Standby time: >100 hours Dimensions of body: 38 x 18 x 10 mm Weight: about 15 gram

105 Bluetooth Wireless Earpiece Mini Micro Earphone Bluetooth Inductive