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  3. RETRO BOX FIO-RETROBOX vs Session 540

FiiO RETRO BOX FIO-RETROBOX vs Skullcandy Session 540

What RETRO BOX FIO-RETROBOX does better (2) and where Session 540 wins (2) — every spec side by side.

FiiO RETRO BOX FIO-RETROBOX
2 advantages≈ $75
vs
Skullcandy Session 540
Skullcandy · 2026Session 540
8.3Score
2 advantages≈ $70
Higher score

Why is RETRO BOX FIO-RETROBOX better than Session 540?

  1. Output power11 W vs 10 W+6%
  2. Bluetooth version6 vs 5.3+13%

Why is Session 540 better than RETRO BOX FIO-RETROBOX?

  1. Battery life10.5 h vs 40 h3.8×
  2. Lowest frequency65 Hz vs 20 Hz3.2×
Specifications

Side by side

Sound
Driver size—49.5 mm
Output power11 W10 W
Lowest frequency65 Hz20 Hz
Highest frequency20,000 Hz20,000 Hz
Hi-Res AudioYes—
Adjustable equaliser—Yes
Battery & charging
Battery life10.5 h40 h
Quick charge (claimed)—10 min → 3.5 h
Fast charging support—Yes
Battery powered (portable)YesYes
Connectivity
WirelessYesYes
Bluetooth version65.3
Multipoint (two devices)—Yes
LE Audio—Yes
Auracast—Yes
Smart & streaming
Companion app—Yes
Design & build
Weight—320 g
Width99 mm—
Height76 mm—
Depth153 mm—
Protection rating—IP67
Water resistance (IPx)—IPx7
Dust protection (IP)—6
Colours—Plasma, Primer, True Black, Cement
Features
Hands-free callsYes—
Party / stereo pairing—Yes
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