The Hoco HC3 Sports Bluetooth Speaker is a small, portable speaker that is designed for outdoor use. It has a Bluetooth 5.0 connection, a 2400mAh battery, and a 52mm speaker driver. It supports a variety of playback modes, including Bluetooth, FM radio, TF card, USB flash drive, and AUX. It also has a TWS mode that allows you to pair two speakers together for stereo sound. The HC3 Sports has a rugged build quality and is splash-proof. It’s about the size of a grapefruit and weighs about 598g. The speaker is made of plastic with a metal grille on the front. The top of the speaker has the power button, volume buttons, a Bluetooth button, and a TF card slot. The back of the speaker has a micro USB charging port and a 3.5mm AUX input. The sound quality of the HC3 Sports is good for its size. The speaker gets loud enough to fill a small room and the bass is surprisingly strong. The highs are a bit tinny, but overall the sound is balanced and enjoyable. The speaker also has a built-in echo cancellation feature that helps to improve the sound quality of phone calls.