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Black open-ear headphones with adjustable ear hooks and charging case

Tekkeon F9 open-ear headphones Bluetooth 5.4 50h 16.2mm

SKU CH-NPSP-4YNM4

Open-ear Bluetooth 5.4 headphones with 16.2 mm drivers, 50-hour battery life and IPX6 sweat resistance for all-day comfort

  • TypeOn-Ear
  • ColorBlack
  • THDOpen Ear
  • Power Supplybattery, true
  • ConnectorNo Jack
  • Ear Couplingopen_ear
  • Open-ear design keeps you aware of surroundings while listening
  • 50 hours battery life removes charging worry for long sessions
  • Bluetooth 5.4 gives stable wireless connection for calls and music
  • 2 mm dynamic driver delivers clear stereo sound
  • IPX6 rating resists sweat and rain during workouts

Open-Ear Design and 50-Hour Battery

These Tekkeon F9 headphones use an open-ear acoustic design with directional sound transmission to keep you aware of your surroundings. Bluetooth 5.4 provides a stable wireless connection. The 16.2 mm dynamic drivers deliver Hi-res stereo sound. A single charge yields up to 50 hours of total playtime with the charging case.

Suits Outdoor Athletes and Office Users

Runners, cyclists and hikers benefit from situational awareness and IPX6 sweat resistance. Office workers can take calls with AI noise filtering while hearing colleagues. Buyers who need passive noise isolation for loud commutes or immersive gaming should consider closed-back alternatives instead.

16.2 mm Dynamic Driver Size

The 16.2 mm driver diameter determines the headphone's bass response and overall sound scale. Larger drivers generally move more air for deeper low frequencies. If your priority is maximum bass impact, verify this driver size matches your preference before purchasing.

Highlights

  • Open-ear design keeps you aware of surroundings while listening
  • 50 hours battery life removes charging worry for long sessions
  • Bluetooth 5.4 gives stable wireless connection for calls and music
  • 2 mm dynamic driver delivers clear stereo sound
  • IPX6 rating resists sweat and rain during workouts

Specifications

BrandTekkeon
ModelF9, BY-US-F9-01-SC
Part NumberBY-US-F9-01-SC
TypeOn-Ear
ColorBlack
THDOpen Ear
Power Supplybattery, true
ConnectorNo Jack
Ear Couplingopen_ear
Cord LengthUser Manual
Wireless TypeBluetooth
Battery50 hours
Operating Time50 hours
Contains Embedded Batterybattery
Features5.4, 50 hours, touch, Wireless, Open Ear, dynamic_driver, Wireless Charging Case x1
Package ContentsWireless Charging Case x1, Open Ear Earbuds x2, User Manual, Charging Cable x1

Questions about this item

How much power does the 16.2 mm driver draw during all-day listening?

The 16.2 mm dynamic driver runs off the internal battery that delivers 50 hours of total playtime, so daily use only requires a top-up every few days.

What device must I already own to use the Bluetooth 5.4 connection?

Any phone, tablet or computer that supports Bluetooth 5.4 will pair instantly with the earbuds.

Will the open-ear design work alongside my older wired headset for calls?

Yes — the earbuds use Bluetooth 5.4 and AI noise filtering for clear calls, while the open-ear fit lets you hear the room, so you can switch to the wired headset whenever you prefer.

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