Rechargable speaker with card slot, FM radio and hands-free function Slim styled, rechargable Bluetooth speaker; compatible with mobile phones, tablets, computers, MP3 players and any device that has a 3.5mm audio output or Bluetooth audio playback. Specifications: - Battery Cell: Rechargeable Lithium Battery 3.7v 1000mAh - Charging Time: 3-4 Hours - Playback Time: Up to 3 Hours - Transmission Distance: 10m - Bluetooth Version: 2.1 - Speaker Power: 2x 3W/4 ohms - Sound to Noise Ratio: 80dB - TF / Micro SD Card Reader - Radio Function What's in the box 1 x Speaker