Calus Tf23 Wireless Earbuds.

Dual Functionality: The main feature is the combination of wireless headphones and a built-in loudspeaker in the charging case. Audio Quality: The product is marketed with "Ultra high volume" speaker capability and supports "HI-RES WIRELESS AUDIO". Connectivity: The earbuds utilize Bluetooth for a stable connection and hands-free calling functionality via a built-in microphone. Design: The charging case has a distinct design with a digital battery percentage display and a colorful light feature. Controls: Calus earbuds typically feature touch controls for managing music playback and calls. Compatibility: They are universally compatible with a wide range of Bluetooth-enabled devices, including smartphones and laptops.