Neck Hanging Bluetooth Earphones, Two Ear Sports Running, Neck Hanging Mobile Phone, Wireless True Stereo In EarFeatures: True LCD digital display of battery level: paired with LED digital display, real-time monitoring of earphone battery level can be controlled at any time, and battery level is clear at a glance. The memory neck hook can be bent at will: smooth and skin friendly silicone material, unique memory curve, automatic rebound- to restore- its original- state, and adjustable- curvature at any time, making wearing more comfortable and natural. Long standby and high capacity battery for continuous listening to music. Equipped with a large capacity safe lithium battery and low-power micro motion technology, it can be quickly charged within 2 hours, providing long-lasting battery life. IPX7 waterproof: It can be worn even in sweaty sports, with a tight body design that effectively prevents sweat from damaging components. Supports memory cards and TYPE-C fast charging. Pluggable memory card for music playback makes listening more convenient.Product Description:Bluetooth: 5.2Bluetooth protocol: A2DP.AVRCP.SPPP.HFPBattery capacity: 250MAHFrequency range: 2.4GHZ spectrum-Frequency response range: 20HZ-20KHZTalk time: Up to 20 hours of talk time (60% volume)Playback time: 60% volume, maximum playback time 20 hoursStandby time: approximately 180 daysCommunication distance: In an open area, the communication distance is 10 metersProduct feature: Sports neck style magnetic suction plastic Bluetooth earphonesChannel: True stereoInstructions for use: Single press the volume up or down (+, -), long press the up or down previous or next- track, single press the power button (pause/play), long press the power button (power on/off), double click (power on/off) to switch- between Chinese and English, and triple- click (power on/off) to switch- between TF cardsPackage:1 * Earphones1 * Charging cable1 * Instructions