Bluetooth Version: 4.2 Battery capacity: 65mAh for left and right one Chipset: CSR from UK Adopt the advanced CVC6.0 active noise-cancellation Charging time: 1 hours Work time: one for 5-6 hours, and a set for 2-3 hours Stand-by time: one for 120 hours, and a set for 60 hours Wireless range: one for above 20m, and a set for above 10m Frequency: 2.4GHz Receive sensitivity: -90dBm Supports A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/DI1.3 Experience rich streaming sound, hands-free convenience, and total comfort with the all-new X1T wireless sports earbuds from Lesoom. State-of-the-art technology pairs this earplug-style set with your laptop, tablet, smartphone, iPod, or any Bluetooth-enabled device. Each bud delivers incredible sound clarity, extra bass, and natural noise cancelling as you maintain focus throughout your day. This sweatproof chargeable pair boasts extended battery life for long walks or gym sessions.Enjoy our intuitive design with a single multi-function button that initiates device pairing, plays and pauses music,and lets you accept incoming calls with the built-in mic and receive helpful voice prompts, Blast some tunes and keep busy with the sleek Lesoom X1T. Handsfree has never been so handsome! Brand X1T SKU 100281800_NP-1020548277 connector_1 3.5MM Wearing type In-Ear wireless_connectivity Bluetooth