JAM Heavy Metal Wireless Stereo Speaker, Built-In Speakerphone, Powerful 20 Watt Speakers, Aluminum Body, Voice Prompts, Incredible Bass, For Audiophiles, Clean Treble, Massive Volume, HX-P920 Wireless Bluetooth for up to 8 Hours Play Time Powerful 20 Watt Speakers Aluminum Body Rechargeable Speakerphone, Voice Prompts