Features: Metal Shell, Bluetooth 5.0, Bass Diaphragm, Mini Portable, TWS Series, Hands-free Calling, TF Card Playback, Wired Connection, Smart Compatibility.Authentic sound quality, master pick and hundreds of adjustments made by professional technical masters, the end result is clear highs and full mid bass with lossless quality.Bluetooth 5.0, instant connection device, C5 Bluetooth speaker is compatible with all kinds of mobile phones, tablets, laptops and other devices in the market. The Bluetooth connection is stable within 10 meters, which makes music playback more free.Metal shell, high-density cutting and molding, fine grinding and glazing, each process is carefully designed, bringing you extraordinary sense of technology and technology.A variety of playback options, in addition to supporting Bluetooth playback, you can also use a TF card to play 3.5mm in-line audio cable that can be connected to a computer to play music directly .More options let you enjoy wonderful music anytime anywhere.