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  3. OpenJump vs HA-EC77T

EarFun OpenJump vs JVC HA-EC77T

What OpenJump does better (4) and where HA-EC77T wins (2) — every spec side by side.

EarFun OpenJump
EarFun · 2025OpenJump
8.5Score
4 advantages≈ $60
vs
JVC HA-EC77T
JVC · 2025HA-EC77T
9.5Score
2 advantages≈ $55
Higher score
4.8Noise control & calls7.2
8.8Battery8.7
8.9Build & features9.4

Why is OpenJump better than HA-EC77T?

  1. Hi-res codec (LDAC / aptX HD / LHDC)Yes · HA-EC77T: No
  2. Driver size14.2 mm vs 6 mm2.4×
  3. Charging time1 h vs 2 h2×
  4. LDACYes · HA-EC77T: No

Why is HA-EC77T better than OpenJump?

  1. Active noise cancellingNo · OpenJump: Yes
  2. Earbud weight (each)7.8 g vs 6 g+30%
Specifications

Side by side

EarFun OpenJumpEarFun OpenJump≈ $608.5
JVC HA-EC77TJVC HA-EC77T≈ $559.5
Sound
FitIn-earIn-ear
Ear cup designOpen-backClosed-back
Driver typeDynamic—
Driver size14.2 mm6 mm
Lowest frequency—20 Hz
Highest frequency—20,000 Hz
Spatial / 3D audioYes—
Head trackingYes—
Hi-Res AudioYes—
Adjustable equaliserYesYes
Noise control
Active noise cancellingNoYes
Transparency / ambient modeYesYes
Microphones4—
Noise reduction for callsYes—
Battery & charging
Battery life11 h11 h
Battery life with ANC—9 h
Total with charging case42 h—
Battery capacity60 mAh—
Charging time1 h2 h
Wireless charging (case)Yes—
Connectivity
WirelessYesYes
Bluetooth version5.35.4
Bluetooth codecsLDAC, SBCAAC, SBC
Hi-res codec (LDAC / aptX HD / LHDC)YesNo
aptXNoNo
LDACYesNo
Multipoint (two devices)Yes—
USB-CYesYes
Low-latency game modeYes—
Smart & streaming
Companion appYes—
Design & build
Earbud weight (each)7.8 g6 g
Protection ratingIPX7IP57
Water resistance (IPx)IPx7IPx7
Dust protection (IP)—5
ColoursBlack—
Features
Touch controlsYesYes
Hands-free callsYesYes
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