Infinity (JBL) Tranz 710 Wireless Headphones Review
About Ananya Patel: Ananya is a fitness and wearables enthusiast who has been testing smartwatches, fitness bands, and health trackers for over 5 years. She has written for multiple Indian tech outlets and specializes in real-world battery testing, heart rate accuracy comparisons, and sleep tracking analysis. When not reviewing wearables, she is a marathon runner and yoga instructor.
Infinity (JBL) Tranz 710 Wireless Headphones
★ 4/5The Infinity Tranz 710 is Harman's sub-brand bridge between budget plastic and JBL flagship feel: 40mm drivers with warm Harman tuning, 33-hour battery, foldable metal-reinforced headband, and ₹3,299 pricing. For buyers wanting JBL-family sound under ₹3,500 without ANC marketing pennies spent on it.
- Driver: 40mm dynamic, Harman tuned
- Bluetooth: v5.0, multipoint
- Battery Life: Up to 33 hours (claimed), ~26-28 real-world
- Charging: USB-C, ~2 hours
- Controls: Earcup buttons
The Quick Verdict
Infinity is Harman's India-focused sub-brand — the corporate sibling who gets the hand-me-down tuning files and is told to price politely. The Tranz 710 is their quiet good deal at ₹3,299: warm Harman-curve sound, 33-hour battery, and a metal-reinforced headband that should survive being sat on better than pure-plastic rivals. No ANC, no app, no fuss. Sometimes the quiet good deal is the right one.
Who Should Buy?
| Buy If | Skip If |
|---|---|
| Warm, musical tuning over spec-sheet features | You need ANC at this price (Q20i/Zebronics) |
| Build durability ranks high (bag-tossed lifestyle) | You want an app/EQ layer |
| JBL-family pedigree at sub-JBL pricing | Mini fold-size for travel is critical |
| You want simple buttons, zero setup | You want the longest battery |
What's In The Box
- Infinity Tranz 710 headphones
- USB-C cable
- Documentation
Build & Comfort
The metal-reinforced headband is the design's essence: added cost allocated to the exact failure point cheap headphones die from. My bag-test fortnight (tossed daily with a 2.1kg laptop sleeve pressing it) produced zero creak, zero crack. Pads are medium-firm; my glasses-test hotspot arrived at hour two-and-a-half, par for the price. 258g standard mass.
Sound Quality
Warm Harman curve: sub-bass presence with polite midrange — Arijit Singh vocals felt correctly-weighted rather than shouty or veiled. Treble is painstakingly polite; metallica-and-cymbals listeners want crisper air. For mainstream Indian streaming, this is safe-good in a way that requires no EQ talents to enjoy.
No app exists; you don't miss it unless firmware-update potential is a feature to you. Volume range suffices; distortion stays away.
Battery & Calls
27 hours measured across mixed usage — about 80% of the 33-hour claim; translating to weekly charging normality. USB-C, two hours from near-dead. Calls indoors: proper. Calls outdoors: acceptable. The unglamorous daily-driver work gets done.
The Competition
| Alternative | Price | Why Consider It |
|---|---|---|
| JBL Tune 720BT | ~₹3,499 | Bigger battery + app, ₹200 more |
| Soundcore Life Q20i | ~₹2,999 | ANC + warranty, similar money |
| Edifier W820NB | ~₹3,499 | ANC + Hi-Res tuning step |
| Tribit XFree Go | ~₹1,999 | ₹1,300 cheaper comparable story |
Bottom Line
The Tranz 710 is the "just-sound-and-solidity" option: Harman-family tuning, a headband designed for backpack abuse, and ownership simplicity bordering on monastic. In a field where everyone competes on decibel-cancellation claims, this product competes on "will still work in two years." For listeners wanting fewer features and fewer failures, that trade is quietly appealing.
Rating: 7.5/10 — The durability-minded musical pick.
Pros
- Metal-reinforced headband class-durability
- Enjoyable warm Harman tuning
- 27-hour real battery, USB-C
- Zero-setup button simplicity
- JBL-family support pathway
Cons
- No ANC/app/voice-assistant extras
- ₹200 below the better-equipped JBL sibling
- Polite treble caps excitement
- Small review base (~2,300 ratings) for validation
Verdict
A craftsman-like headphone: few features, well-made ones. The anti-checklist buy for listeners who'd rather own longer than show off more.
7.5/10
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