•Advanced Bluetooth5.3 Connectivity: Compatible with all Bluetooth-enabled devices, these headphones utilize advanced Bluetooth 5.3 technology for fast pairing and reliable connectivity •Long lasting battery life, no worry about the battery life: 400mAh high capacity battery, playtime is up to 15 hours, get rid of battery life anxiety •Three Modes Switch: Wireless, wired, Insert Micro SDcard, three modes switch, can use the headphone without power •The audio and Scenes are synchronized to easily dominate the game: Quickly press the play key 4 times and switch to low delay game mode. •Good sound quality that lasts forever: The intersection between music and life is wonderful. Let you pick up your headphones and enjoy beautiful sound quality anytime and anywhere. •Wide Compatibility: Fully compatible with devices that with BT, such as mobile phones, computers, tablets, and PC Specification: •Bluetooth version: V5.3+EDR •Bluetooth supports data streams: HSP, HFP, AVRCP, A2DP, SDPAAC, SBC. •Bluetooth chip solution: JELI AC6955F chip for true stereo sound •Charging time: about 2 hours •Music playback time: approximately 15 hours (depending on volume and song) •Talk time: approximately 15 hours (depending on volume) •Battery specification: 3.7V/400mAh Class A with dual protection •Effective and stable connection distance: ≥ 20 meters •Support external TF card (micro SD card) insertion •Support FM radio function •Support game mode - normal mode switching •Durable and scalable design •Input voltage/current: 5V/1A •Speaker: 40mm, 32 Ω •Audio output power: 22mW •Microphone: Sensitivity -42dB ± 3 •Charging port: Type-C Package included: •1 x Headphone •1 x Charging Cable •1 x Audio Cable •1 x English User Manual