Reasons to buy this item:
-The volume of the headphone is loud as for the Bluetooth headphones.
-The charge time is about 2 hours and the battery capacity is about 4-6 hours.
-There is a possibility to insert your SD card and play music from it. In both cases (from SD card or Bluetooth connection) the sound is stable and there are no disruptions.
-The set comprise: the ear pads, instruction, USB charger and the clip.
-The microphone serves good and without any extra noises.

Reasons not to buy this item:
-The control block is rather heavy.
-The wire is thin and can be easily damaged.
-The bass tones are not explicit and clear.

The pros and cons were extracted from the reviews by: vasiliym
Model: BT-X4
Price: 9.29 USD
Rating: 4.80 / 5 (96%)
Nr. of reviews analyzed: 1346
Style: Ear Hook
Vocalism principle: Dynamic
Sensitivity: 82.00dB
Impedance: 32.00Ω
Frequency response range: 20-20000Hz
Wireless type: Bluetooth
Line length: 0.00cm
Connectors: None
Features: microphone, memory card, active noise cancellation
Crawl date: 2019-08-21