Specifications:
<br />-Mode: HY929 
<br />-The consuption current: 10Ma 10mA
<br />-Battery: lithium battery 3.7V
<br />-The probe sensitivity:-70Ddb
<br />-The highest audio maginification: 20000 times 20000X
<br />-Penetration: cement pipe/tube
<br />-Answer: Headest external 16 ohm speaker
<br />-Charging time: about 5hours
<br />-Weight:400g (with retail box)
<br />-Size:20*16*3.5cm (retail box)
<br />-Color: Black
<br /> 
<br />Note:
<br />1. Please put the power off when you do not use it, so as not to damage the machine.
<br />2. Probe is precision parts, so please do not disassemble.
<br />
<br />Pacakge includes:
<br />-Wall microphone voice bug ` 1 
<br />-earbuds ` 1 
<br />-date cable ` 1 
<br />-charger adapter `1 (default is US PIN)
<br />-Audio cable with probe ` 1 
<br />-Sonde ` 1 
<br />-User manual paper `1