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Outdoor Bluetooth Wireless Teaching Amplifier for Teacher Tour Guide
Company Code: ONF023
Housing material: Plastic
Main unit dimensions: 12.2 × 9 × 3.2 cm
Net weight of main unit: 284 g
Output power: 15
Power supply: Built-in lithium battery
Frequency response range: 60 Hz–15 kHz
Signal-to-noise ratio: ≥75 dB
Control method: Buttons
Bluetooth protocol: 5.0
Effective range: 10 metres
Battery capacity: 2,000 mAh
CERTIFICATES
Outdoor Bluetooth Wireless Teaching Amplifier for Teacher Tour Guide
This Bluetooth wireless teaching amplifier is designed specifically for teachers, tour guides, training instructors and others who use their voices frequently. The device is lightweight at just 284g and palm-sized, making it easy to wear on a belt or place on a desk. With 15W output power and Bluetooth connectivity, it frees you from the constraints of cables and ensures clear coverage in classrooms, exhibition halls and outdoor presentations. The built-in lithium battery is conveniently and quickly recharged via USB, and a single full charge is sufficient to meet a full day’s teaching needs. It leaves your hands free, protects your voice and ensures that every word is clearly heard right to the back row.
Advantages
1. Automatic connection for ease of use
Start broadcasting as soon as you switch it on – no fiddly connections required. With truly wireless broadcasting, you no longer need to be weighed down by a main unit.
2. Long-range, wall-penetrating transmission
Wireless transmission range of up to 35 metres, capable of passing through walls. Deliver instructions without having to run around.
3. Intelligent noise reduction
Equipped with an intelligent noise-reduction chip to reproduce pure, authentic sound, ensuring a pleasant listening experience for both the speaker and the audience! Protects both your voice and your ears!
4. One-Button Recording
The unit features a built-in high-sensitivity microphone; simply insert a memory card to start recording at the touch of a button – no need to connect an external microphone.
5. Speaker Function
Comes with an audio cable as standard; plug it into the unit’s AUX socket to connect to a computer or mobile phone and use it as a portable speaker.
6. Easy to Wear or Hang
Comes with a high-quality belt as standard. The unit is designed with belt loops, so you can wear it on your waist or hang it wherever you like – the choice is yours!

Suitable scenarios
1. Classroom teaching: Worn by teachers whilst lecturing, it ensures clear sound coverage throughout the classroom and effectively protects the vocal cords
2. Tour guide commentary: Ideal for leading groups outdoors or at tourist attractions; lightweight and portable, ensuring every visitor can hear the commentary clearly
3. Training/roadshows: For corporate training and roadshow presentations, it allows for unrestricted movement without cables, enabling smoother interaction
4. Outdoor Events: Ideal for trade fairs, promotional events and morning exercise sessions; the 15W output is sufficient to cut through noisy outdoor environments
5. Conference Speeches: Used as a portable sound amplification device in small meetings, with no need for complex wiring or installation


Product Information
The product details are as follows

Customer Service
We offer customisation options for company logos and brand identifiers! Brand logos, school names or bespoke designs can be printed onto the device using screen printing. Minimum order quantities vary depending on the production method; please feel free to enquire.

FAQ
Q1: What area can a 15W speaker cover?
A1: In indoor teaching settings, a 15W speaker paired with a high-quality speaker unit can typically provide effective coverage for a classroom of approximately 50–100 people or a space of approximately 100–200 square metres. Actual coverage may vary depending on ambient noise and the layout of the venue.
Q2: What is the Bluetooth connection range?
A2: The effective Bluetooth connection range is typically over 10 metres, reaching 15–20 metres in open spaces, which generally meets the requirements for classrooms and exhibition halls.
Q3: How long does a full charge last?
A3: The product is powered by a built-in lithium-ion battery; the specific battery life varies depending on the volume setting. We recommend fully charging the device before class to ensure it meets the sound amplification needs for a full day of teaching.
Q4: What should I do if feedback occurs during use?
A4: If feedback occurs, we recommend turning the volume down slightly, or adjusting the distance and angle between the microphone and the main unit to ensure the microphone is not directly facing the speaker.
Q5: Can I play music from my mobile phone?
A5: Yes. Once connected to your mobile phone via Bluetooth, you can play teaching audio, background music and other content, making the device versatile for multiple uses.
Feel free to inquire anytime and lock in your favorite style!