Beats Solo 4 Bluetooth Wireless On-Ear Headphones,Beats Solo 4 - Bluetooth Wireless On-Ear Headphones,Amazon.com: Beats Solo 4 - Wireless Bluetooth On-Ear Headphones, Apple & Android Compatible, Up to 50 Hours of Battery Life - Matte Black (Renewed ,Amazon.com: Beats Solo 4 - Wireless Bluetooth On-Ear Headphones, Apple & Android Compatible, Up to 50 Hours of Battery Life - Matte Black : Electronics,Beats Solo 4 - Wireless Bluetooth On-Ear Headphones, Apple & Android Compatible, Up to 50 Hours of Battery Life - Black & Gold