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Black in-ear wireless earbuds with charging case

EarFun Free 2S Wireless Earbuds Black

SKU CH-J4YP-WVA3W

True wireless in-ear buds with 7 mm drivers, passive noise isolation, four microphones for clear calls, IPX7 water resistance and 30 hours total playtime via USB-C or wireless charging

  • Driver size7 mm
  • Frequency range5 Hz-20 kHz
  • Headphone styleIn Ear
  • Impedance32 ohms
  • Signal-to-noise ratio100 decibels
  • Power supplyCell, true
  • Powerful bass and detailed sound from 7mm composite dynamic driver
  • Four built-in microphones minimise background noise for clear calls
  • 7 hours playtime per charge with 30 hours total using the case
  • IPX7 waterproof rating resists sweat and splashes during workouts
  • 10-minute quick charge delivers 2 hours of listening time

What they are and who they suit

EarFun Free 2S are true wireless in-ear earbuds with a 7mm composite dynamic driver and Bluetooth connectivity. They deliver a frequency response of 5Hz-20KHz and a sensitivity of 100 decibels for detailed sound. The IPX7 rating protects against sweat and splashes during workouts. Four built-in microphones support clear hands-free calling.

Practical limits of the Bluetooth interface

A single charge provides 7 hours of playtime, while the case extends total listening to 30 hours. A 10-minute charge adds 2 hours when you are in a rush. The case supports both USB-C and wireless charging for flexibility. Game mode in the companion app reduces latency for casual play. Passive noise isolation depends on the ear-tip seal.

What they replace and when to upgrade

These replace wired earphones or older Bluetooth sets that lack app-based EQ and multipoint pairing. The jump is worth it if you want customizable touch controls, battery readouts, and a secure fit for exercise. Buyers who need active noise cancellation or longer single-charge endurance should look elsewhere.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $45.99
Pricier than about 69% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameEarFun
Product line2
Model nameEarFun Free 2S
Product typeIn-Ear
Product colorBlack
Audio & video
Driver size7 mm
Frequency range5 Hz-20 kHz
Headphone styleIn Ear
Impedance32 ohms
Signal-to-noise ratio100 decibels
Audio sensitivity100 decibels
Wearing styleSingle Ear
Noise cancellationPassive
Mic impedance~3K ohm
Mic frequency response20 Hz-20 kHz
Mic signal-to-noise ratio100 decibels
Mic sensitivity100 decibels
Connectivity
Wireless technologyBluetooth
Ports & slots
ConnectionNo Jack
Power
Power supplyCell, true
Battery pack7 h
Run time7 h
Charging time10 minutes
Built-in batteryCell
Size & build
Cord lengthEartip
Product weight0.141 oz
In the box
In the boxEarFun Free 2S Wireless Earbuds, Cable, Eartip, User Manual

Questions about this item

What does the 7 mm driver size mean for sound quality?

The 7 mm composite dynamic driver delivers powerful bass and detailed mids and treble for a comprehensive music experience.

How does the 32 ohm impedance affect daily use?

The 32 ohm input impedance ensures efficient power use and broad compatibility with smartphones and other Bluetooth sources.

What does Bluetooth connectivity cap in practice?

Bluetooth provides stable, fast transmission with one-step pairing and automatic reconnection to the last paired device.

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