Price per pair $799–$1,995 $99–$489 $799–$2,950 $799–$999 $297-$699
Battery Life 12–30 hours 20–24 hours 9-16 hours 18 hours 16–20 hours
Bluetooth Yes No Yes
on the Link only
 Yes
adjustments only, no streaming; iPhone call streaming through B2 model only
 Yes
adjustments only on Volt Max, no streaming
Warranty 3 years 1 year 1–2 years 1 year 1 year
Financing Yes No Yes No Yes (Volt Max)