Technical Specification:
1. Material: Zircon
2. Speaker: 8 mm (8 mm NdFeB speaker)
3. Rated input power: 1Mw， Maximum input power: 3mW
4. IMPEDANCE: 16Ω±15%
5. Speaker Sensitivity: 93±3dB (at 1KHz 1mW)
6. Speaker Frequency Response: 20-20K Hz
7. Microphone Sensitivity: -40dB±3dB(1kHz)， 0dB=1V/pa
8. OPERATION TEMPERATURE: -10Celsius --- +55Celsius

This headset， can be simple pair smartphones for Samsung HUAWEI Xiaomi HTC ZTE.

Features:
Lightweight， ergonomical design， comfortable to wear.
Using headset can reduce harm of the electromagnetic waves from mobiles.
Built-in microphone， reduce noise and echo.
Convenient keys， receive/hang the call.
Superb Stereo Bass sound quality， pure and sweet.
Simple pair for Samsung HUAWEI Xiaomi HTC ZTE.

Specifications:
Brand: ROCK
Model: RAU0501
Color: White， Black(Optional)
Material: Plastic
Speaker: 8 mm NdFeB speaker
Rated Input Power: 3mW
Impedance: 16Ω±15%
Mic: approx. -38dB
Speaker Sensitivity: 93dB±3dB(at 1KHz 1mW)
Frequency Response: 20-20K Hz
Plug:3.5mm
Product size: Approx. 120 * 2 * 2cm / 46.8 * 0.78 * 0.78in
Product weight: Approx. 20g / 0.7oz
Package size: Approx. 19 * 10 * 2.5cm / 8.6 * 2.5 * 0.97in
Package weight: Approx. 68g / 1.6oz

Note:
Item color may show slight aberration due to different shooting light and monitor display.

Package Lists:
1 * Earphone
1 * Use Manual
4 * Spare earbud cover