Jabees Bt True Wireless Earbuds - Cool Black Features: - Bluetooth version: Taiwan Airoha AB-1511J V4.1, Class 2 - Bluetooth profile: HSP/HFP/A2DP/AVRCP - Operating distance: Up to 10 meters in open space - Music playback time: Up to 3 hours - Talk time: Up to 4 hours - Charging time: Approximately 2 hours - Multipoint: Support, for 2 phones connection when BTwins using in single - Sweat Proof: Designed to withstand the most intensive workout conditions - Power pack: Storage and Charging, Built-in Battery 450mAh - Product dimension: 14.4mm x H 16.3mm - Weight of earbud: 4.5g What's in the box 1 x Pair of BTwins (True Wireless Stereo Headphones) 1 x Power pack (450mAh) 3 x Sport in-ear hook 3 x Eartips bullet-shape (L,M,S) 3 x Eartips bowl-shape (L,M,S) 1 x MicroUSB charging cable for charging the Power Pouch 1 x User manual