About this item Turn Your Wired Earphones, Headphones & Speakers into Wireless Devices! Featuring Bluetooth 5.1 + EDR technology for full-speed transmission and low power consumption. Hands-free solution for seamless call handling and music enjoyment. Oversized buttons for intuitive control of playback, track selection, and volume adjustment - perfect for active lifestyles. Compatible with iPhone, iPad, iPod, Android smartphones/tablets, and other wireless-enabled devices. Size: 2 x 1 x 1 inches.