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Specifications 

* Bluetooth V2.1 

* Bluetooth A2DP+EDR technology 

* Bluetooth AVRCP technology 

* Frequency response: 150Hz-20KHz 

* S/N: >80dB 

* Battery capacity: 800mAh 

* Support format of music in TF (micro SD) card: MP3, WMA, WAV, FLAC, APE 

* Support capacity of TF card: 32GB max 

* FM frequency range : 87.5-108MHz 

* Standard 3.5mm audio input   

* Charging input: 5V, micro USB   

* N.W.: 230g 

* Dimensions: W150mm x H58mm x D39mm 

* Accessories: 3.5mm audio cable, micro USB charging cable 

Compatible with 

* Compatible with Bluetooth enabled mobile phones, tablets, notebooks. 

Use Means 

* Switch: Power ON / OFF. 

* M button: Choose playing mode of Bluetooth, TF (micro SD) card, FM radio, AUX in.   

* Left button: Backward (hold as volume down) / Scan backward (FM). 

* Right button: Forward (hold as volume up) / Scan forward (FM). 

* Centre button: Play / Pause / Answer call / Hang off / Re-dial (hold for 3 seconds). 

* Bluetooth pairing: Switch on the speaker, simply put the NFC position of the device closed to the 

logo on the back of the speaker for pairing Bluetooth. Or use device to search Bluetooth signal of 

"NT-278". 

* Indication of blue LED: Long blue, ready for pairing. Quick flashing blue, paired. 

* Indication of red LED: Long red, charging. No red light, full power or no connection with external 

power supply. 

* After disconnecting Bluetooth, you can restart the Bluetooth speaker to reactivate connection in 

the effective distance, or you can do the Bluetooth pairing again. 

* When inserting TF (micro SD) card into slot, it will automatically play music in card. 

* Radio signal can be enhanced via connecting micro USB charging cable in FM radio mode. 

 

 

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