You are looking at wireless headset with built in microphone. It uses bluetooth version 4.0+EDR to connect to compatible devices such as iPhone, laptops, desktops, tablets, smartphones, etc. In addition the headphones have a number of features that make it universal: a standard audio cable with 3.5mm jack that supports wired connection with various devices, play-back function with built-in Micro-SD slot for memory cards up to 32GB, FM Radio (87.5~ 108MHz), Super Bass High Fidelity Stereo Surround Sound with professionally tuned 40mm dynamic alloy speaker drivers, built-in HD microphone with noise cancellation function, answer phone button, foldable design, super lightweight, comfortable earmuffs made of soft breathable protein leather, removable and replaceable 400mAh lithium battery that is capable of giving you up to 8-10 hours of playback an up to 20 days in standby mode. Unique beautiful design makes this headset a perfect choice for yourself, your friends and loved one.
With Microphone: Yes
Plug Type: Wireless and wired
Resistance: 32?
Wireless Type: Bluetooth
Model Number: B570
Volume Control: Yes
Connectors: 3.5mm
Frequency Response Range: 20-20000Hz
Active Noise-Cancellation: No
Vocalism Principle: Hybrid technology
Brand Name: ZEALOT
Sensitivity: 110±5dB
Support Memory Card: Yes, microSD up to 32 GB
Style: Headband
Support APP: No
Control Button: Yes
Bluetooth Version: Bluetooth 4.0
Operating Distance: Up To 10 meters
Bluetooth Files: A2DP, AVRCP, HSP, HFP
Speaker Size: 40mm Drive Unit
Sensitivity: >= 85dB
Battery: 400mAh Rechargeable Lithium Battery
FM Radio: Support ( 87.5 ~ 108NHz )
Music Play Time: About 8 Hours
Standby Time: About 20 Days