1. 서론
The Hushing BD-C4 is a versatile 3-in-1 device combining a sound machine, alarm clock, and night light. Designed to enhance sleep and wake-up routines, it features 27 soothing sounds, 30 wake-up sounds, a 12-color night light, and a digital clock with adjustable brightness. Its memory function ensures settings are retained after power interruptions.

Image 1.1: The Hushing BD-C4 device showcasing its three primary functions: sound machine, alarm clock, and night light.
2. 안전 정보
This product is electrically powered and should be kept out of reach of children. Follow all voltage and power requirements to reduce the risk of electric shock. Do not use this product as a toy. Be aware of noise exposure limits.
3. 패키지 내용
- Hushing BD-C4 3-in-1 Sound Machine
- USB 전원 케이블
- AC Charging Block
- 빠른 시작 가이드
- 사용 설명서 (본 문서)
- 1 CR2032 Battery (pre-installed for memory function)
4. 제품 오버view 및 제어
Familiarize yourself with the buttons and their functions on the top panel of the device.

Image 4.1: Top panel controls of the Hushing BD-C4.
- 전원 켜기/끄기 버튼: 기기를 켜거나 끄려면 누릅니다.
- SNOOZE/Light Button: Press to snooze an active alarm. Press and hold to cycle through night light options or turn it off.
- Alarm ON-OFF Button: Press to activate or deactivate the alarm.
- Screen Dimmer Button: Press to adjust the brightness of the digital time display.
- Auto OFF Timer Button: Press to set a sleep timer (1h, 2h, 3h, 4h).
- Previous Sound / Volume Decrease Button: Press to go to the previous sound. Press and hold to decrease volume.
- Next Sound / Volume Increase Button: Press to go to the next sound. Press and hold to increase volume.
- Next/Last Light Button: Press to cycle through night light colors.
5. 설정
- 전원 연결: Connect the USB power cable to the device and the AC charging block. Plug the charging block into a standard wall outlet. The device will power on automatically or can be turned on using the Power ON/OFF button.
- 초기 시간 설정: 처음 사용 시 또는 장시간 전원을 끈 후tage (if the internal CR2032 battery is depleted), the time may need to be set. Refer to the "Setting the Clock" section for detailed instructions.
- 메모리 기능: The device includes a pre-installed CR2032 battery to maintain time and settings during brief power interruptions. This battery is for memory backup only and does not power the device for operation.

Image 5.1: The Hushing BD-C4 device ready for use.
6. 사용 설명서
6.1. 사운드 머신 기능
- 소리 선택: Press the "Previous Sound / Volume Decrease" or "Next Sound / Volume Increase" buttons to cycle through the 27 available soothing sounds. These include white noise, brown noise, 7 lullabies, and 18 natural sounds (rain, thunderstorm, sea waves, wind, campfire, cricket, frog, singing birds, etc.).
- 볼륨 조절: Press and hold the "Previous Sound / Volume Decrease" or "Next Sound / Volume Increase" buttons to adjust the volume. There are 32 adjustable volume levels.
- 자동 종료 타이머 설정: Press the "Auto OFF Timer" button to set a sleep timer for 1, 2, 3, or 4 hours. The sound will automatically turn off after the selected duration.

이미지 6.1: 이상view of the 27 soothing sounds available.
6.2. 알람 시계 기능
- 알람 설정: Press the "Alarm ON-OFF" button to enter alarm setting mode. Use the "Previous Sound / Volume Decrease" and "Next Sound / Volume Increase" buttons to adjust the hour and minute. Press the "Alarm ON-OFF" button again to confirm each setting.
- Choosing Wake-Up Sounds: While in alarm setting mode, you can select from 30 wake-up sounds, including classic beeps, natural sounds (singing birds, waves, streams), and lullabies (Merry Christmas, piano).
- 알람 활성화/비활성화: Press the "Alarm ON-OFF" button outside of setting mode to toggle the alarm on or off. An alarm icon will appear on the display when active.
- 스누즈 기능 : When the alarm sounds, press the "SNOOZE/Light" button to activate a 9-minute snooze.

Image 6.2: Features of the alarm clock function.
6.3. 야간 조명 기능
- 색상 선택: Press the "Next/Last Light" button to cycle through the 12 available night light colors.
- 밝기 조정: Press and hold the "SNOOZE/Light" button to adjust the night light's brightness. There are 10 adjustable brightness levels.
- Turning Night Light On/Off: The night light can be turned on or off independently of other functions. Use the "SNOOZE/Light" button to control it.

Image 6.3: The Hushing BD-C4 night light in use.
6.4. Time Display Brightness
Press the "Screen Dimmer" button to cycle through 4 levels of time display brightness: low, medium, high, and off. This allows customization for optimal visibility without disturbing sleep.

Image 6.4: Adjustable time display brightness levels.
7. 유지관리
- 청소: 부드럽고 마른 천으로 기기를 닦으세요. 액체 세척제나 연마재를 사용하지 마세요.
- 배터리 교체: The internal CR2032 battery is for memory backup. If settings are not retained after power loss, the battery may need replacement. Consult a qualified technician or contact customer support for assistance.
- 저장: 장기간 사용하지 않을 때는 기기를 서늘하고 건조한 곳에 보관하세요.
8. 문제 해결
If you encounter issues with your Hushing BD-C4, please refer to the following common problems and solutions:
| 문제 | 해결책 |
|---|---|
| 장치의 전원이 켜지지 않습니다. | Ensure the USB power cable is securely connected to both the device and a working power outlet. Try a different outlet or USB adapter. |
| Settings are not saved after power loss. | The internal CR2032 memory battery may need replacement. Contact customer support for guidance. |
| Difficulty adjusting volume or changing sounds. | For volume adjustment, press and 잡고 있다 the +/- buttons. For changing sounds, press the +/- buttons briefly. |
| Time display is too bright or too dim. | Press the "Screen Dimmer" button repeatedly to cycle through the four brightness levels, including off. |
| 알람이 울리지 않습니다. | Ensure the alarm is activated (alarm icon visible on display). Verify the alarm time is set correctly. Check the alarm volume level. |
9. 사양
| 특징 | 세부 사항 |
|---|---|
| 모델명 | HAC-C4 |
| 품목 모델 번호 | BD-C4 |
| 상표 | 허싱 |
| 전원 | 코드식 전기 |
| 재료 | 플라스틱 |
| 치수 | 4.45 x 4.45 x 3.5 인치 |
| 무게 | 10.55 온스 |
| 배터리 | 1 CR2032 battery (included, for memory backup) |
| 편안한 소리 | 27 (White Noise, Brown Noise, Lullabies, Natural Sounds) |
| 기상음 | 30 |
| 야간 조명 색상 | 12 |
| Night Light Brightness Levels | 10 |
| 볼륨 레벨 | 32 |
| Time Display Brightness Levels | 4 (including off) |
10. 보증 및 지원
For warranty information or technical support, please contact Hushing customer service. You can find more information and contact details on the official Hushing store page:
11. 법적 고지사항
건강 보조 식품 관련 내용은 FDA의 평가를 받지 않았으며, 질병이나 건강 상태를 진단, 치료, 완치 또는 예방하기 위한 것이 아닙니다. 본 제품은 의료 기기가 아닙니다.