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  3. Clam Ace 2 vs KH-BT04

Fresh 'n Rebel Clam Ace 2 vs Metz KH-BT04

What Clam Ace 2 does better (3) and where KH-BT04 wins (1) — every spec side by side.

Fresh 'n Rebel Clam Ace 2
Fresh 'n Rebel · 2026Clam Ace 2
8.8Score
3 advantages≈ $85
Higher score
vs
Metz KH-BT04
Metz · 2026KH-BT04
8.8Score
1 advantage≈ $160
5.8Noise control & calls8.6
9.4Battery7.7

Why is Clam Ace 2 better than KH-BT04?

  1. Battery life100 h vs 60 h+67%
  2. Battery life with ANC60 h vs 40 h+50%
  3. Bluetooth version6 vs 5.4+11%

Why is KH-BT04 better than Clam Ace 2?

  1. Charging time2 h vs 1.5 h+33%
Specifications

Side by side

Metz KH-BT04Metz KH-BT04≈ $1608.8
Sound
FitOver-earOver-ear
Ear cup designClosed-backClosed-back
Driver typeDynamicDynamic
Driver size—40 mm
Lowest frequency—20 Hz
Highest frequency—20,000 Hz
Impedance—32 Ω
Hi-Res Audio—Yes
Adjustable equaliserYes—
Noise control
Active noise cancellingYesYes
Transparency / ambient modeYes—
Microphones2—
Noise reduction for callsYesYes
Battery & charging
Battery life100 h60 h
Battery life with ANC60 h40 h
Battery capacity—800 mAh
Charging time2 h1.5 h
Quick charge (claimed)10 min → 8 h—
Fast charging supportYes—
Connectivity
WirelessYesYes
Bluetooth version65.4
Bluetooth codecs—aptX HD
Hi-res codec (LDAC / aptX HD / LHDC)—Yes
aptX—Yes
LDAC—No
Multipoint (two devices)Yes—
USB-CYes—
3.5 mm jack / AUXYes—
Smart & streaming
Voice assistantGoogle Assistant, Siri—
Companion appYes—
Design & build
Weight—245 g
FoldableYesYes
Colours—Black
Features
Hands-free callsYesYes
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