Prime Line Poolside Water-Resistant Speaker

ABS plastic, with Aluminum carabiner attached; Water-resistant to IPX5 standard; Functions Include: speaker with hands-free built-in microphone, FM radio; Power/technology: rechargeable lithium-ion battery: 400 mAh/3.7V; input: DC 5V; output: 3W; wireless 2.1; frequency 100Hz ? 20kHz; Connects to your mobile device using wireless technology, can also connect through 3.5mm audio cable (Included); Approx. playback time: up to 2?4 hours; Includes USB to Micro USB charging cable and 3.5mm audio cab