Mutant MIG-BT213 M-Sync Portable Rechargeable Bluetooth Speaker with Speakerphone: * 2 x 30mm drivers deliver pulsing sound * Bass reflector adds depth and richness to the sound * Noise reduction microphone for hands-free mobile calling * Rechargeable built-in battery provides 5+ hours of playback * 3.5mm AUX-in for direct connection * Lighted soft-touch controls * High gloss piano black finish * DC and Battery modes let you charge and play at the same time * Charging via USB (cable included) * Bluetooth Specifications: Bluetooth 2.1+EDR * Output Power: 3W x 2 * Frequency Response: 100Hz-20kHz * Bluetooth Working Distance: 10m