★Upgraded Bluetooth 5.1 chip, the connection is more stable and the delay is lower, and it supports Bluetooth devices ★Support ACC/SBC HD audio decoding ★10mm dual-frequency large moving coil unit, composite dual-diaphragm, high-frequency analysis ★True TWS, regardless of main and auxiliary ears, free switching between ears, can be used alone ★Take it out and connect, pair in seconds, and automatically pair after the first pairing ★Long battery life, 3-4 hours in a single use, and the charging compartment can be used 4 times ★Adopt Type-c interface, fast charging, charging compartment magnetic design ■Brand: Lenovo ■Model: LP40 Pro ■Material: ABS ■Color: Pink, Green，Purple ■Bluetooth version: BT5.1 ■Type: In-ear ■Transmission distance: 10M ■Music time: about 4-5 hours ■Charging time: about 1.5 hours ■Charging box capacity: 250mAh ■Headphone battery capacity: 30mAh ■packing list: 1 x pair of earplugs 1 x charging case 1 x charging cable 1 x User Manual