The TWS-X9 are wireless earbuds with Bluetooth 5.0  so you get a more stable bluetooth signal range (10 meters in direct line of sight).

Features of TWS-X9 bluetooth earphones:

1) The TWS-X9 earbuds come enclosed inside a protective box that doubles as a power bank charger and storage case. The earbuds are held in place with magnets so they won't fall out from the charging cradle

2) The TWS-X9 True Wireless Earbuds charger case can fully recharge the earphones four times over and takes just 4 hours to fully charge.
There are four led indicators to let you know the amount of charge being held. Each led indicates 25% charge.

3) The TWS-X9 bluetooth earphones have a high gloss black finish with a single touch sensitive button on each earphone 
and a built-in microphone with CVC 6.0 noise cancellation which drowns background noise during a phone call.

4) As far as sound, the TWS-X9 integrate a 10mm speaker driver and a 40mAh rechargeable battery in each earbud.
The sound is good with clear highs, a touch of bass and loud volume even though they are rated at 32 ohms