JBL C100SI – Compact, Punchy, and Budget-Friendly.

JBL C100SI Wired In‑Ear Headphones (Black) deliver the signature JBL experience in a lightweight and stylish package. Here’s an enhanced breakdown:

 Sound Quality & Tuning

Bass Performance: The 9 mm drivers offer a punchy, energetic low end with good depth—JBL’s "feel‑it‑in‑your‑bones" sound, ideal for bass lovers .

Mids & Highs: Mids are slightly warm and recessed, but vocals remain clear; treble is bright and detailed without being harsh 

EQ-Friendly: Users report that even light equalizer tweaks enhance clarity across all frequencies 

Comfort & Fit

Lightweight & Secure: With plastic housings and angled buds, they’re ultra-light and stay put—even during movement

Included Tips: Three silicone eartip sizes help you achieve a snug fit for better noise isolation and comfort

Built-In Mic & Controls

A one-button inline remote supports calls and playback controls on both Android and iOS devices

The mic gets consistent praise for clear voice pickup, though some note the lack of volume/track controls beyond play/pause.

Build Quality & Durability

Pros: Sturdy enough for daily use, with less tangling thanks to rubberized cables

Cons: Cable is thin, and longevity varies—some users report one side failing after ~1.5 years .

More detail

🌐 User Feedback

Strong Flipkart ratings around 4.2★ show satisfaction in key areas: “Excellent at this price”—“Good Bass, Clear Treble”

Reddit users highlight its snug fit and U-shaped tonal curve:

“The sound is U shaped … main advantage is that they never fall from the ear.

It’s really cheap. So you can’t expect premium quality or anything.” 

Pros & Cons Overview

Pros	Cons
Punchy bass, clear treble, bright mids	Thin cable; less isolation
Lightweight, secure fit with angled buds	Durability varies; may fail after ~1‑2 years
Inline mic remote works well	No volume/next-track control
Affordable at INR 600–1 000	Sound leakage at higher volumes

 Verdict

Ideal for everyday listeners and casual commuters, the JBL C100SI offers excellent value (typically INR 600–1 000). Its signature bass, comfortable fit, and call-ready mic make it a smart pick—especially if you’re okay with moderate longevity and lack of advanced remote features. For under ₹1k, it’s a solid performer packed in a sleek form.