Infinity (JBL) Swing 350 True Wireless in-Ear Headphone, 8mm Driver

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Build Aspect

Infinity Swing 350 from JBL is a True Wireless earphone offering ₹ 3000 in India. This pair of TWS earphones are well constructed and feel relatively robust. They are quite slim and have a matte and gloss finish combination which gives them a decent look. In-ear comfort levels are really good and they are rather sturdy and won’t fall off easily. Furthermore these have some tolerance against foreign elements since they are IPX4 rated.

Performance Aspect

JBL Infinity Swing 350 Bluetooth Earphones have a good sound signature with a tuning that will please most if not all. Essentially they have decent bass, natural mid range and extended treble. Although treble can be a bit too bright on some tracks. Nonetheless Swing 350 delivers an enjoyable and non fatiguing sound for hours at a stretch. So it would suffice to say to wrap up by saying that the Swing 350 are one of the best wireless earphones under 3000 Rupees in India.

Also: View Top Rated Realme TWS Earbuds on Amazon.


Sturdy and decent build.
Passable sound quality.
Adequate battery capacity.


Slightly harsh treble.
Looks are cheap.

  • 24 Hours of Combined Playback (6 Hrs on Earbuds & 18 Hours on Charging Case)
  • Dual Equalizer Mode for Normal & Deep Bass output
  • Seamless Switching of Earbuds: Flexibility to use both earbuds or go mono by using either one of the two earbuds
  • Deep Bass output with Dynamic 8mm Drivers
  • Bluetooth 5.0 for Seamless Connectivity
  • Hands-free Mono and Stereo Calling
  • IPX4 Splash proof
  • Smart Touch Controls
  • What’s in the box : Swing 350 Earbuds, Charging Case, Micro USB Charging Cable, 3 sizes of eartips (S, M, L), User Manual/ Warning/ Warranty Card, Pouch

From the manufacturer


eneral Specifications

Frequency Range 20Hz~20kHz
Built-In Microphone Yes
Siri/Google Now Yes
Flat cable No

Audio Specifications

Driver Size 8mm


Product Weight (grams) 70g
Box Dimension(HxWxD) 19x21x27

Control and Connection Specifications

Bluetooth version 5.0
Bluetooth profiles HFP1.6, A2DP1.3, AVRCP1.5, SPP
Bluetooth Transmitted Power <10 dBm
Bluetooth Frequency 2.402GHz – 2.480GHz
Bluetooth Transmitted Modulation GFSK, ∏/4 DQPSK, 8DPSK


Battery Type (Headset) Li-ion Ploymer (3.7V, 55mAh)
Battery Capacity (Charging Box) 3.7V 390mAh
Charging Time(Charging Box) <2hrs
Battery Life(Earbuds) About 6hrs
Charging Time(Earbuds) <1.5hrs
Music playtime Up to 24 hour
Rechargeable battery Yes


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