Production license: Cantonese food drug permit Product No 200220595
Product registration number: Cantonese food drug permit 2011No 2460193
Product standards number: YZB/Guangdong 0680-2010

Features:
The body convergence towards  to inside, between the upper shell and lower shell with a blue decorative piece to avoid the gap dislocated by the upper and lower shell, wear comfortable and natural, not oppression ears. Firm structure, superior performance: ear hook connected with shell pillars, the structure is solid and reliable; increase the low frequency "H" file to reduce noise, use high-fidelity microphone with high-performance white headphones, small distortion and low noise.

Technical Parameters:
* Max Out : 130 ± 4dB
* Max Gain : 48 ± 5dB
* Harmonic Dist: ≤ 5%
* Frequency Range : 450Hz ~ 3500Hz
* Equivalent Input Noise : ≤ 32 dB
* Standard Battery: AG13(A5)button cell
* Voltage : 1.5V
* Current : ≤ 3 mA

Specification:
Product Weight: 8g
Product Size: 4.6*3.8*0.9cm
Packing details: Paper+Plastic box
Packing Size: 12*8.5*3.2cm
Q.T.Y/Carton: 120PCS
Carton Size: 52.5*31*39cm
GW: 11Kg
NW: 9Kg