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Rolton K400 Specification:
Suitable for: teaching, tour guides, promotions, meetings
Support USB disk and TF card to play music
Audio power: >5W
Battery capacity: 1200mAh
Charging: use standard USB 5V (can use mobile phone charger)

Rolton K400 Mini size:
H 8.5cm * W 85cm * D 3.4cm
H 3.3inch* W 3.3inch* D 1.2inch

Detachable 18650 battery:
The battery capacity is 1200mAh. It can be used for 8 hours. Play music for about 4-8 hours (volume 50%-80%).

Charging using a standard USB cable:
Can be charged using a variety of standard USB chargers
1) It is recommended to share the mobile phone charger for charging.
2) Charger current is greater than 500mA

Knob volume control:
The knob controls the volume, which is very convenient for most users.

RoltonK400 Packing list:
1 * K400 loudspeaker
1 * 1200mAh battery
1 * Professional Wired headset Microphone
1 * Instruction manual
1 * USB charging cable (data cable)
1 * Waistband Belt

Style B

Details:

GOOD HELPER FOR YOU: Amplify your sound in crowded occasions. This voice amplifier can provide 5w clear and soft sound to cover about 1000 square meters, let everyone hear what you say.

HIGH SOUND QUALITY: Surround 3D sound field, provides high sound reproduction and clearer sound quality, make your voice clear and soft, and will not produce harsh noises.

SMALL AND PORTABLE: The size is only 4x3x1in, compact and lightweight, it will not burden you too much. Comes with an adjustable strap, allows you to wear it on the waist or hang around the neck.

MUSIC PLAYER FUNCTION: It supports USB flash drive playback and TF card playback, you can repeat a single tune, loop all music, and switch songs/recording content, you will never miss any important information again!

WIDELY USE: Great for teachers, tour guides, physical trainers, and anyone who needs to improve their sound. For classroom, lectures, speech, training, meeting, shopping mall, etc.

FUNCTIONS:

1. This voice amplifier can provide 5w clear and soft sound to cover about 1000 square meters, let everyone hear what you say.

2. Compact size and lightweight, comes with an adjustable strap, allows you to wear it on the waist or hang around the neck, easy to carry around.

3. It supports USB flash drive, TF card, phone and computer playback, you can repeat a single tune, loop all music, and switch songs/recording content.

4. 2200mAh Large capacity rechargeable battery, only need to charge for 4 hours, can last for 4-6 hours.

5. Surround 3D sound field, provides high sound reproduction and clearer sound quality, make your voice clear and soft, and will not produce harsh noises.

6. With display screen, easy to read.

7. With a headset microphone, release your hands so you can talk while doing other things.

Specification:
Material: ABS
Size: 9.2 x 8.4 x 2.8 cm/3.62 x 3.31 x 1.10 inch
Power: 5W
Battry capacity: 2200mAh
Charging time: 4h
Working time: 4-6 hours
Life time: up to 15 hours
Playback mode: support USB flash drive playback and TF card playback
Note: Due to manual measurement, there may be small deviations.
Available color: black, rose gold
Please tell us the color you want when you buy it, or else we will send it at random

HOW TO USE:

1. Place the microphone in front of your mouth to obtain the maximum amplification effect.

2. Do not whistle: keep a certain distance between the microphone and the speaker, and preferably facing each other.

3. Put on a headset, hang the amplifier speaker on your waist, then turn it on, and finally gradually increase the volume as needed.

Package:
1 x Voice Amplifier
1 x Microphone
1 x Charging Cable
1 x Waist Belt
1 x User Manual