ONIKUMA GT839 gaming headphones multi-mode connectivity Bluetooth 5.4/2.4 GHz/wired 40 mm drivers up to ~45 h playtime built-in 800 mAh battery detachable microphone USB-C charging black

ONIKUMA GT839 are multi-mode gaming headphones with wireless and wired connectivity options, designed for flexible use across different platforms. They combine 40 mm drivers, a detachable microphone, and long battery life of up to approximately 45 hours. Ideal for gaming, communication, and entertainment with no latency.

Key Advantages

• Multiple connection modes → maximum flexibility for different devices

• Bluetooth 5.4 → stable and energy-efficient wireless connection

• 2.4 GHz connection with adapters → low latency for gaming

• Wired connection option → uninterrupted operation without a battery

• 40 mm drivers → clear sound with balanced bass and detail

• Detachable microphone → freedom to choose gaming or entertainment mode

• 360° adjustable microphone → accurate voice pickup

• Built-in 800 mAh battery → long use without recharging

• Up to ~45 h battery life → suitable for long gaming sessions

• Lightweight body (~176 g) → comfort during prolonged use

• Memory foam ear cushions → less pressure and more comfort

Technical Specifications

• Type → wireless/wired over-ear gaming headphones

• Model → GT839

• Drivers → 40 mm

• Frequency range → 20 Hz – 20 kHz

• Sensitivity → 115 ±3 dB

• Impedance → 32 Ω ±15%

• Connection modes → Bluetooth, 2.4 GHz, wired

• Bluetooth version → 5.4

• Transmission range → up to 15 m

• Battery → Li-ion, 800 mAh

• Battery life → up to ~45 h

• Charging time → ~2 h

• Charging port → USB-C

• Microphone → detachable, adjustable

• Weight → ~176 g

• Color → black

Compatibility

• Compatible with → PCs and laptops

• Compatible with → game consoles with USB-A or USB-C

• Compatible with → tablets and smartphones with Bluetooth

• Not compatible with → devices without Bluetooth, USB, or a 3.5 mm audio connection

How to Use

• Select the desired connection mode

• Connect the 2.4 GHz adapter or pair via Bluetooth

• If needed, use a wired connection

• Attach or remove the microphone depending on use

• Adjust the headband and ear cushions

• Charge with a USB-C cable when needed

Why Choose This Product
ONIKUMA GT839 offer one of the most flexible connection solutions in their class. Long battery life, a detachable microphone, and a lightweight build make them a practical choice for both gaming and everyday use. Reliable sound quality and wide compatibility provide long-term value.

Real-Life Usage Scenarios

• Online gaming with low latency

• Console gaming in the living room

• Streaming and voice chat

• Watching movies and series

• Listening to music while commuting

• Work and calls from a smartphone

Package Contents

• ONIKUMA GT839 gaming headphones

• Detachable microphone with foam windscreen

• 2.4 GHz adapter (USB-A + USB-C)

• Audio cable

• USB-A → USB-C charging cable

• User manual

About the Brand
Onikuma specializes in gaming peripherals, combining functional design with stable performance. The brand focuses on comfort, broad compatibility, and technologies tailored to the needs of modern gamers.