Review on 🔊 Zealot S1: Waterproof Outdoor Bluetooth Speaker with Bike Mount and Power Bank - Red by Tom Podolski

Most basic features are pretty good. In short, the emergency light is your main light with three modes (bright, dim, bright and flashing). The speaker delivers good sound quality for its size and has a solid Bluetooth connection (also works well with an audio cable). Charging devices with the built-in battery works as expected, although it puts the charging cable in an awkward position on the bike. There are some other features that aren't often talked about that are a little rough around the edges. The speaker can receive FM radio, but only with the cable connected, which acts as an antenna. It can play music from a micro SD card, but watch out for this feature as it's very difficult to pull the card out again if you ever want to add more music. Also, your only options are Play, Skip Song, and Previous Song. It can act as a USB speaker for computers, but the volume is always set to maximum, which is definitely not what you want. If you need extras, compare this to some of the other options.