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Product Description

Wireless Headphones

This lightweight overband headphones enable you to listen to your favorite music without the limitation of cables. Due to the adjustable headband and soft ear cushions the headphones are comfortable to wear. The button on the left earcup enables you to switch between listening to music and answering telephone calls.


The clear sound and powerful bass make them suitable to listen to all kinds of music.

3.5mm Audio Jack

The enclosed audio cable enables you to use the headphones as wired headphones, if you like.

Product Specifications
Specifications GROHBTBK01
Driver unit Dynamic 40mm
Driver material Ferrite (ceremic)
Cable length na
Cable material na
Bluetooth version 5.0
Wireless range 10 mtr
Battery type Lithium 400mAh
Battery life 9 -10 hours
Standby time up to 200 hours
Charging time 1.5 – 2.5 hours
Connector type 3.5mm Audio Jack
Connector material Nickel
Frequency response range 20Hz – 20kHz
Impedance 32
Sound level 110 ± 3dB
Sensitivity 117 ± 3dB
Channel matching Yes
Harmonic distortion ≦ 5% THD
Rated Power 8mW
Maximum power 12mW
Mic sensitivity -38 ± 3 dB
Mic frequency 70 Hz – 10 kHz
Mic directivity Omni Directional
Remote control Yes
Weight 150gr
In the Box
·         Headphones
·         3.5mm Audio Jack cable
·         Micro USB cable