Audifonos Bluetooth de Auricular Plano con gran bateria de 400 mAh te permiten mas de 40 a 50 Horas en Stand By, 20 a 25 horas REALES de trabajo continuo reproduciendo musica o en llamdas sin parar, son comodos y tambien traen ranura para tarjetas micro SD. disponibles en Color NEGROStyle Neckband/In-ear* Bluetooth Version V5.3* Support profiles HSP,HFP,AVRCP,A2DP* Frequency range 2.402 GHz - 2.480GHz* Audio range 20Hz-20KHz* Sound Mode Real Stereo Bass* Charging time About 2 hours* Voice assistant* Support card Micro sd card* Battery Li-ion 400mAh 3.7VMusic time: About 40 hours* Talk time: About 40 hours* Stand-by Time: Up to 300 Hours* Operating Distance: About 20 meters* Output 22mW*2* SNR: 95dB* Speaker Impedance 10mm,32 Bass* Microphone 42d 3* Colors: BlackMicro SD cardGarantía del vendedor: 35 días