Brand Name:CATASSU
Style:On-ear
Vocalism Principle:Dynamic
Origin:CN(Origin)
Active Noise-Cancellation:Yes
Control Button:Yes 
Communication:wireless
Volume Control:Yes
Certification:CE, FCC, RoHS
Number Of Drivers:2
Plug Type:Line Type
Impedance Range:up to 32 Ω
Model Number:bluetooth headset
Headphone Pads Material:Memory Foam
Support Memory Card:Yes
Waterproof:Yes
Frequency Response Range:20 - 20000Hz
Magnet Type:Neodymium
Wireless Type:bluetooth
Line Length:1.0mm
Codecs:AAC
Codecs:sbc
Driver Diameter:40mm
Resistance:32ΩΩ
Sensitivity:84dBdB
Is wireless:Yes
Connectors:3.5mm
Earcups Type:Semi-open
Bluetooth Version:5.0
Total Harmonic Distortion:0.5%
Charging Method:CABLE
Max Output:1000mW
Support APP:No
Function:for Video Game
Function:For Mobile Phone
Function:HiFi Headphone
With Microphone:Yes
Features:With Microphone
Features:Detachable Cable
Frequency:2.40GHz-2.48GHz
version:bluetooth V4.0
effective distance:10meters
Support system:Mobile Phone,Computer TV all have bluetooth function
Playing time:about 10 hours
Power supply:powered by rechargeable 400MAH battery
charge time:2~3hours
Speaker:high quality 40 mm diameter speaker
MP3 mode:support SD card playing MP3
1.Bluetooth + MP3 functionsupport stereo music playing, phone calling...
2. Support all audio devices that have Bluetooth capability, such as, cell phone ,tablet PC,laptop,computer etc.
3. 3.5mm audio jack, provides a simple wired connection of a variety of devices without Bluetooth.
4. Allow you to answer or reject phone calls anytime and anywhere.
5. Charged via USB, rechargeable battery, convenient and practical.
6.Playing time up to 10 hours, and continue talk time up to 8 hours, standby time up to 250 hours.
7. Good quality, foldable design and adjustable length hinges, very comfortable to wear and easy to carry.
8. Best choice for listening music, watching movie, chatting online etc.
9. with SD card insert,without any bluetooth device,can still enjoy music any time any where.
10.Cool shinning look adds the popular feel.
Version
V5.0
Frequency
2.40GHz-2.48GHz
Power
≤ 4 dBm, class 2
Effective range
10M
Sensitivity
-84dBm / 0.1% BER
Frequency response
20 Hz - 20 KHz
S/N rate
88 dB
Distortion
0.10%
Speaker size
40mm
support
A2DP 1.2, AVRCP 1.0, HSP, HSF 1.5
Voltage
3.7VDC (built-in 400MAH rechargeable battery)
talking time
10 hour
standby time
250hour
charge time
2-2.5 hour
current
40 mA
operate temperature
-4 ~ +131°F(-20 ~ +55°C)

Packing list:
1 x colorfulbluetooth headset(Please choose colors)
1 x micro USB charge cable
1 x instruction guide
Note:NO audio cable and SD card include in the package!Thank you:)