Connectivity: Bluetooth, USB, USB-C, Wired, Wireless Feature: Rechargeable, Waterproof Play Frequency: Full Range Speaker Special Function: Anti-magnetic, Memory Card Support, Radio, USB Disk Support Usage: Computer, Home Theatre System, Karaoke, Mobile Phone, Portable Player, Stage/DJ, TV Key Specifications/Special Features: Waterproof: Get the party started wherever you are with this C15 Bluetooth. Compatible with most Bluetooth-enabled devices, such as MP3 players, smartphones and tablets. Easy to control: Controls include volume up and down, play/pause and pairing/answering phone. Can be used as a speakerphone, so you can make and receive hands-free calls. Special process: Rubberized coating and IPX5 waterproof rating make the speaker ideal for use around the pool. Capacity: 1200mAh Playing Time: 3-5Hours Charging Time2.5: 2.5Hours