FREQUENCY RESPONSE (BLUETOOTH® COMMUNICATION): 
20 Hz–20,000 Hz (44.1 kHz Sampling) 2
VOLUME CONTROL
WEARING STYLE:In-ear headphones
NFC: Yes
BATTERY CHARGE TIME: Approx. 2.0 hrs
BATTERY CHARGE METHOD: USB
BATTERY LIFE (CONTINUOUS MUSIC PLAYBACK TIME): Max. 8 hrs
BATTERY LIFE (WAITING TIME): Max. 200 hrs
BLUETOOTH® VERSION: Version 4.2
EFFECTIVE RANGE: Line of sight approx. 30 ft (10 m)
FREQUENCY RANGE: 2.4 GHz band
Micro-USB cable