Products
Product Name: Wireless Bluetooth Earphone for Walkie Talkie Two Way Radio Bluetooth Headset
Model: BT021_K
OEM/ODM: Yes
Product Features:
1. Product Name:Two-way Radio Bluetooth Noise Cancelling Headset
2. This product set includes a Sports Ear-Hook Wireless Headphone, a Wireless Headphone Adapter, and an optional Wireless Finger PTT Button, designed for reliable, noise-canceling communication in professional scenarios such as security, logistics, and event management. 3. Plug Type: TK Plug
4. Communication distance:10 M
5. Charging Port:Type-C
6. Frequency: All components operate at 2400-2483.5MHz, ensuring stable wireless connection.
7. Battery: All use reliable lithium-ion polymer batteries:
8. Headphone: 260mAh (962mWh) for up to 10 hours of use, fully charged in 2 hours.
9. Adapter: 230mAh (851mWh) for up to 10 hours of use, fully charged in 2 hours.
10. PTT Button (Optional): 60mAh (222mWh) for up to 80 hours of use, fully charged in just 1 hour.
11. Charging: All devices support 5.00V DC input, compatible with standard USB chargers. 12. Intelligent Power Management: Built-in LED indicators and voice reminders for battery charge, discharge and low-battery alerts, keeping users informed of power status in real time.
13. Clear Pairing Confirmation: Dedicated LED indicator for successful Bluetooth pairing, delivering instant visual feedback to ensure reliable wireless connection.
14. Professional Communication: Designed for security, logistics and event management scenarios, offering stable wireless transmission and noise-canceling performance.
| Battery Technical Specifications | ||||||
| Device | Frequency Range | Battery Type | Battery Capacity | Battery Life | Charging Time | Charging Input |
| Sports Ear-Hook Wireless Headphone | 2400-2483.5MHz | Lithium-ion Polymer Battery | 260mAh 3.7V (962mWh) | Approx. 10 hours | Approx. 2 hours | 5.00V DC |
| Wireless Headphone Adapter | 2400-2483.5MHz | Lithium-ion Polymer Battery | 230mAh 3.7V (851mWh) | Approx. 10 hours | Approx. 2 hours | 5.00V DC |
| Wireless PTT Button (Optional) | 2400-2483.5MHz | Lithium-ion Polymer Battery | 60mAh 3.7V (222mWh) | Approx. 80 hours | Approx. 1 hour | 5.00V DC |
| Charging & Battery Status Indicator Table | ||||
| Device | Battery Level (≥21%) | Low Battery (20%) | Charging | Fully Charged |
| Wireless Headphone | No indicator | Red LED flashing + voice prompt (low battery) | Red LED stays solid | Blue LED stays solid |
| Wireless Adapter | No indicator | Red LED flashing | Red LED stays solid | Blue LED stays solid |
| Wireless Finger PTT (Optional) | No indicator | Red LED flashing | Red LED stays solid | Red LED turns off |
| Wireless Headphone – Button Operations | |||
| Button | Operation | Function | LED Indicator |
| Power Key | Long press for 3 seconds | Power on | Blue LED lights up for ~1 second |
| PTT Key | Long press | Activate walkie-talkie PTT transmission | Red LED stays solid |
| PTT Key | Long press for 8 seconds (when not connected to wireless adapter) | Switch between Chinese and English voice prompts | Red LED stays solid (when PTT function is activated) |
| Volume + Key | Short press (adjust one level up) | Increase volume (8 levels) | --- |
| Volume - Key | Short press (adjust one level down) | Decrease volume (8 levels) | --- |
| Adapter – Button Operations | |||
| Button | Operation | Function | LED Indicator |
| Power Key | Long press for 3 seconds | Power on | Blue LED lights up for ~1 second |
| Power Key | Long press for 3 seconds (when powered on) | Power off | Blue LED lights up for ~1 second, then all LEDs turn off |
| Wireless Finger PTT (Optional) – Button Operations | |||
| Button | Operation | Function | LED Indicator |
| Power/PTT Key | Long press for 3 seconds | Power on | LED lights up for ~1 second |
| Power/PTT Key | Long press (after successful pairing) | Activate walkie-talkie PTT transmission | Red LED stays solid |
| Power/PTT Key | Adapter is powered off | Auto power off after 180 seconds | --- |
| Pairing & Connection Instructions | ||||
| Device Pairing | Step | Operation | LED Indicator | Function |
| Headphone & Adapter | 1 | Long press headphone power key (3s) | Blue LED on ~1s → Red & Blue LEDs flashing | Power on & enter pairing mode |
| 2 | Long press adapter power key (3s) | Blue LED on ~1s → Red & Blue LEDs flashing | Power on & enter pairing mode | |
| 3 | Auto-pair after power-on | Blue LED slow flash; Headphone battery LED solid | Connection successful | |
| PTT (Optional) & Adapter | 1 | Long press adapter power key (3s) | Blue LED on ~1s | Power on adapter |
| 2 | Long press PTT power key (3s) | Red LED on ~1s → Red LED flashing | Power on PTT & enter pairing mode | |
| 3 | Auto-pair after power-on | PTT red LED turns off | Connection successful | |
| 4 | Adapter powered off | No signal | PTT auto powers off after 180s | |
| Warnings | ||||
| 1. Do not disassemble, repair or modify the wireless headphone, adapter or wireless finger PTT for any reason, otherwise it may cause fire or complete product damage. | ||||
| 2. Do not place the device in environments with extremely low or high temperatures (below -10℃ or above 60℃). | ||||
| 3. When using the device indicator, avoid approaching the eyes of children or animals. | ||||
| 4. Do not use the device during thunderstorms, as thunderstorms may cause abnormal operation and increase the risk of electric shock. | ||||
| 5. Do not puncture or scratch the terminal with hard objects. | ||||
| 6. Do not store the terminal in an environment containing corrosive substances. | ||||
| 7. Do not wipe the product with corrosive liquids. | ||||
| 8. Avoid contact between the device and liquids. | ||||
| 9. This product contains small parts. Please keep it out of reach of children to avoid the risk of suffocation due to accidental ingestion. | ||||
| Cautions | ||||
| 1. If the product has not been used for more than two weeks, it is recommended to charge it before use. | ||||
| 2. Must use chargers produced by regular manufacturers and certified by China CCC. | ||||
| 3. Using the headphone at maximum volume may damage hearing health. Please control the volume reasonably. |
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Xiamen Yuhong Export & Import Co., Ltd. was founded in 2023 with its independent brand LSENG. We specialize in providing one-stop solution for walkie-talkie accessories, focusing on the R&D and supply of high-quality walkie-talkie microphones and headsets. Our product portfolio covers walkie-talkie headsets, external speakers, wireless Bluetooth accessories and other supporting accessories. Tailored for multiple industry scenarios, our products consistently deliver outstanding audio performance.
Email : chris@accessoriesradio.com
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