Bluetooth Protocol: A2DP/HFP/HSP/AVRCP Charging Time for Charging Compartment: About 1 hour Condition: Bluetooth Distance: Approx. 10m/10.9yd Earbuds Charging Time: About 1-1.5 hours Optional Color: Black, White Supports binaural and single‑ear modes, automatic connection, wide compatibility, and comes with a charging compartment. 1 x Pair Bluetooth 5.0 Earbuds 1 x Charging Compartment Bluetooth Version: V5.0+EDR Charging Compartment Battery: 200 mA lithium battery (Built in) Bluetooth version V5.0+EDR, provides faster and more stable connection, also has lower power consumption. Earphone Battery: 40 mA lithium battery (Built in) 1 x Charging Cable Support power display, call function, provides bilateral stereo effect, makes you hear more clearly. Item Type: Bluetooth 5.0 Earbuds Light in weight and small, easy to carry, can be used for driving, sports, etc. Talk Time: About 3-4 hours Music Time: About 2-3 hours Material: ABS Clean Earbuds Wireless Earbuds for Sleeping