• 3.7V 300mAh battery provides ample listening time on a single charge. • Bluetooth V5.3 ensures a stable and efficient wireless connection up to 10m. • 40mm drivers deliver clear and balanced audio with good bass response. • Up to 36 hours of playtime via Bluetooth, ideal for extended use. • Supports AUX cable connection for wired listening. • Built-in microphone for hands-free calls. • Impedance of 64Ω and sensitivity of 105dB @ 1KHz. • Frequency response of 20Hz-20KHz.