Specifications: Model 1 (Oval case on the left): NEW SENYANG True Wireless Earbuds with Oval Charging Case Type: True Wireless Stereo (TWS) Earbuds Stylish design with a compact oval charging case Stable and fast Bluetooth 5.3 connection High-quality stereo sound with clear bass Touch control for music and calls Built-in microphone for clear calls Fast charging with USB-C port Battery life up to several hours + additional charges from the case Automatic pairing when opening the case Lightweight and comfortable for daily use Compatible with Android and iPhone devices Model 2 (Rectangular case on the right): NEW SENYANG Open-Ear Earbuds with Ear Hook Design Type: Open-Ear Clip-On Earbuds Open design that does not enter the ear canal Comfortable and stable ear hook during movement Stylish rectangular charging case Bluetooth 5.3 connection Clear stereo sound with awareness of surrounding sounds Easy touch control Microphone for high-clarity calls USB-C charging Suitable for sports, running, and daily use Lightweight and does not cause ear pressure Compatible with Android and iPhone