Description: Features: Noise-cancelling system, high-quality speakers and microphone for improved call comfort. Buttons: Simple and light-touch buttons, answering and hanging up calls, convenient and easy to use. High-definition speaker and microphone: There is a button on the side of the microphone to adjust the volume. Soft to the touch on the outside: suitable for home and office. Move away from your phone to eliminate up to 99% of radiation absorption. Compatible with mobile phones and computers: Compatible with most 3.5mm devices. Compatible with all mobile phones and computers. Specification: Model: xsl-560 Material: ABS Plug: 3.5MM Frequency range: 20-20000HZ Sensitivity: 111dB3% Impedance: 150ohm Speaker diameter: 38mm Line length: about 1 meter long Connection plug: 3.5MM four tips Adjustment Mode: Button Function: Noise reduction system to improve call comfort. Size Chart: 21x5x6cm/8.27x1.97x2.36inch Package Includes: 1 Piece Telephone Handset Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!