Stereo Headset: CL-AUD63019 Stereo Headset with Modern Style Red Ring Design Over the Ear Design Closed Earpad Detachable Microphone Tube Diameter: 1.5" Sensitivity: 105dB Frequency Response: 20Hz - 20,000Hz Impedance: 32Ohms Rated Power: 20mW Microphone Unit: -58 +/- 3dB Cord Length: 80" Plug Types: 1/8-inch Stereo CL-AUD63020 Stereo Headset with Modern Style Green Ring Design Over the Ear Design Closed Earpad Detachable Microphone Tube Diameter: 1.5" Sensitivity: 105dB Frequency Response: 20Hz - 20,000Hz Impedance: 32Ohms Rated Power: 20mW Microphone Unit: -58 +/- 3dB Cord Length: 80" Plug Types: 1/8-inch Stereo CL-AUD63021 Stereo Headset with Modern Style Blue Ring Design Over the Ear Design Closed Earpad Detachable Microphone Tube Diameter: 1.5" Sensitivity: 105dB Frequency Response: 20Hz - 20,000Hz Impedance: 32Ohms Rated Power: 20mW Microphone Unit: -58 +/- 3dB Cord Length: 80" Plug Types: 1/8-inch Stereo CL-AUD63023 Lightweight Headset for iPhone & Smartphone, Built-in Slim In-line Microphone - Brownie 4 pin 3.5mm (1/8") Plug, Tip-Ring-Ring-Sleeve (TRRS) Connector for Cellphones Works with Smartphone, iPhone, and HTC Phones for Handsfree Talking In-line Microphone with Play/Pause Button Bundled with a PC-adapter for use with Desktops, Laptops and Mac Computers (13") Cord Length: 60" Speaker: 40mm Dynamic Drivers Weight: Only 6oz for Hours of Listening Color: Brownie TRRS Layout: Tip - Left Audio / Ring 1 - Right Audio / Ring 2 - Common/Ground / Sleeve - Microphone CL-AUD63024 Lightweight Headset for iPhone & Smartphone, Built-in Slim In-line Microphone - Lady Pink 4 pin 3.5mm (1/8") Plug, Tip-Ring-Ring-Sleeve (TRRS) Connector for Cellphones Works with Smartphone, iPhone, and HTC Phones for Handsfree Talking In-line Microphone with Play/Pause Button Bundled with a PC-adapter for use with Desktops, Laptops and Mac Computers (13") Cord Length: 60" Speaker: 40mm Dynamic Drivers Weight: Only 6oz for Hours of Listening Color: Brownie TRRS Layout: Tip - Left Audio / Ring 1 - Right Audio / Ring 2 - Common/Ground / Sleeve - Microphone CL-AUD63025 Lightweight Headset for iPhone & Smartphone, Built-in Slim In-line Microphone - Sky Blue 4 pin 3.5mm (1/8") Plug, Tip-Ring-Ring-Sleeve (TRRS) Connector for Cellphones Works with Smartphone, iPhone, and HTC Phones for Handsfree Talking In-line Microphone with Play/Pause Button Bundled with a PC-adapter for use with Desktops, Laptops and Mac Computers (13") Cord Length: 60" Speaker: 40mm Dynamic Drivers Weight: Only 6oz for Hours of Listening Color: Brownie TRRS Layout: Tip - Left Audio / Ring 1 - Right Audio / Ring 2 - Common/Ground / Sleeve - Microphone CL-AUD63026 Lightweight Headset for iPhone & Smartphone, Built-in Slim In-line Microphone - Crystal Silver 4 pin 3.5mm (1/8") Plug, Tip-Ring-Ring-Sleeve (TRRS) Connector for Cellphones Works with Smartphone, iPhone, and HTC Phones for Handsfree Talking In-line Microphone with Play/Pause Button Bundled with a PC-adapter for use with Desktops, Laptops and Mac Computers (13") Cord Length: 60" Speaker: 40mm Dynamic Drivers Weight: Only 6oz for Hours of Listening Color: Brownie TRRS Layout: Tip - Left Audio / Ring 1 - Right Audio / Ring 2 - Common/Ground / Sleeve - Microphone   CL-AUD63027 Lightweight Headset for iPhone & Smartphone, Built-in Slim In-line Microphone - Panther 4 pin 3.5mm (1/8") Plug, Tip-Ring-Ring-Sleeve (TRRS) Connector for Cellphones Works with Smartphone, iPhone, and HTC Phones for Handsfree Talking In-line Microphone with Play/Pause Button Bundled with a PC-adapter for use with Desktops, Laptops and Mac Computers (13") Cord Length: 60" Speaker: 40mm Dynamic Drivers Weight: Only 6oz for Hours of Listening Color: Brownie TRRS Layout: Tip - Left Audio / Ring 1 - Right Audio / Ring 2 - Common/Ground / Sleeve - Microphone