About this product
Speaker TypeCenter Channel Spearkers
Smart SpeakerYes
Audio Crossover4 Way,Full Range
ModelK400
Connection TypeWired
Product ConditionNew
With MaganetNo
Battery Capacity(mAh)1800
Battery in The ProductYes
With BatteryYes
Warranty TypeNo Warranty
Product description
The main difference between the two products is the usage time and function
Use time: 5-8 hours (Depends on the volume)
Use time: 3-5hours (Depends on the volume)
1,Bluetooth Mode:You can Bluetooth to your phone/laptop to play Music
2,Noise-reduction System:Produces clear sound when using the Microphone
3,Recording Voice Function
4,Adjustable Volume (Button)
5,Rechargeable 1200mHA battery
6,Small in Size & Portable to Carry.
7,Ultra Light Weight but Powerful Loud Speaker
8,Voice Amplifier with Superb Clear Sound
9,Reachable Target Area up to 1500 Sqm.
10,Music MP3 Speaker / Voice Recorder/ Voice Amplifier/ PC Speaker.
Basic function: Voice amplifier / Music Speaker
Use time: 5-8 hours(Depends on the volume)
Input power: power adapter/USB/ Li-ion
Microphone Connection Method: Wired
Speaker function: Bluetooth music speaker/MP3 speaker/voice amplifier/recording
Battery Capacity: 1800mHA battery (Rechargeable)
Dimension: 85mm x 34mm x 85mm
Net Weight: About 133g(Including lithium battery)
1 x Rolton K400 ( Black / Rose Gold)
1 x Professional Wired headset Microphone
Q: Do this included wireless mic?
A: No, it only included with wired mic
A: Normally can last for 4 - 8 hours, but mostly depends on the volume
Q: Do this has Bluetooth?
A: Yes, Bluetooth is available with K400
Q: Do the battery need to change?
A: The battery is rechargeable and a charging cable is included with it
Q: Why there's buzz sound from the speaker?
A: 1.Mic too near the speaker
2. The speaker is charging
3. Electronic devices too near with the speaker
Q: How to power on the speaker?
A: Press & Hold the Play/Pause button until the power is on.
Q: Can I have a English version manual?
A: Customer can scan the QR code within the parcel or request from our customer service.
This is a very simple and practical teacher Bluetooth amplifier!
Product type: Bluetooth amplifier
Speaker: 3-inch full frequency, dual voice coil speaker
Battery: 1200mAh with protection
Battery capacity: 1200mAh
Use time: 3-5hours(Depends on the volume)
Product color: Pearl white/Ruizhi black
Basic functions: teaching amplification/Bluetooth connection/promotional loop