Open Wireless Headset H19
- 40mm professional drivers.
- Hollow drivers with detachable passive noise-isolation plugs.
- Switch between open and closed modes in seconds.
- Dual-device connectivity.
- 55 hours of playback.
- Omnidirectional HD microphone.
ACESOUND

Innovative hollow drivers
Hollow drivers, detachable plugs

Open or closed mode in seconds
Detachable plugs switch modes fast

Smart dual connectivity
Two devices linked, calls auto-switch

One knob, total control
Twist for adjust, press for action

Omnidirectional HD mic
Omnidirectional pickup, noise-free

Gaming mode activated
Ultra‑low latency: full immersion

18 months warranty
🎧Open to Closed - Adapt to Your Mood
Switch between open and closed modes with a detachable noise-isolation plugs. Enjoy ambient awareness outdoors or deep immersion in noisy environments - your choice, your way.
🔊40mm Professional Driver - Crisp, Balanced Sound
A precisely tuned 40mm driver delivers clear separation across highs, mids, and lows. Hear every detail of your music with stunning clarity - from delicate piano notes to powerful basslines.
🔗BT v6.0 - Stable Connection, Superior Sound
Experience rock-solid BT connectivity with the latest 6.0 standard. Enjoy minimal interference, ultra-low latency, and premium audio quality - whether you're listening to music or taking calls.
🔄Dual-Device Connectivity - Seamlessly Switch Between Devices
Connect to two devices at once. When a call comes in, the headset automatically switches sources - so you never miss a beat or an important call.
🗣️Wind-Resistant Mic - Clear Voice in Any Condition
The omnidirectional HD microphone filters out wind noise and background chatter. Your voice comes through loud and clear - perfect for calls in windy parks or busy streets.
⚙️Intuitive Control - One Knob, Many Functions
Control music, calls, and volume with a single multi-function knob. Simple, tactile, and always within reach - no need to grab your phone.
🎮Game Mode - Ultra-Low Latency for Immersive Play
Activate game mode for near-instant audio response. Sync sound with action for a competitive edge - hear footsteps, explosions, and cues with zero delay.
⚡Fast Charging - 10 Minutes for 8 Hours of Music
Never run out of power: a quick 10-minute charge gives you 8 hours of playback. Top up during your coffee break and enjoy music all day - no long waits, just instant enjoyment.
🔋55-Hour Battery Life - Music That Lasts
With up to 55 hours of playback at moderate volume, you can listen for days without recharging. Perfect for long trips, workdays, or weekend marathons - worry-free music on the go.
💆Lightweight Comfort - Wear All Day, Forget You're Wearing It
Designed for all-day comfort: a breathable fabric headband and soft ear pads distribute weight evenly. No pressure, no fatigue - just pure listening pleasure.
SPECIFICATION
| Product name: | ACEFAST H19 open wireless headset. |
| Connection method: | BT. |
| BT version: | v6.0. |
| Audio codecs: | SBC / AAC. |
| Transmission distance: | 10m. |
| Driver: | 40mm, dynamic hollow driver. |
| Sensitivity: | 97dB ± 3dB. |
| Impedance: | 32Ω. |
| Rated power: | 20mW. |
| Frequency response: | 20Hz - 20kHz. |
| Microphone: | 1 × omnidirectional, high-definition. |
| Noise cancellation: | ENC: Environmental noise cancellation, single mic, ensures clear voice during communication. |
| Battery capacity: | 400mAh, 3.7V. |
| Input: | DC5V⎓0.32A, USB-C. |
| Charging time: | 1.5 hours. 10-minute charge provides: 8 hours of music playback. |
| Working time: |
|
| Materials: | ABS, silicone. |
| Size: | 200 × 175 × 95mm. |
| Weight: | 200g. |
| IPX rating: | IPX4. |
| Certification: | CE, RoHS, FCC, EAC, UKCA. |
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What's in the box?

Headset
× 1

Noise-isolating
plugs × 2

USB-A to USB-C
cable × 1

Manual
× 1




