Specifications:This is a bluetooth-compatible headset which is also MP3, which can supports TF card expansion, and can listen to songs even without a mobile phone.Equipped with high-fidelity speakers, it has full, powerful low frequency and clear vocals.Featuring magnetic absorption design and neck-hanging in-ear design, the earphone won& 39;t be shaken off during exercise.It is waterproof and sweat-proof, which is suitable for sports and running.Equipped with the new bluetooth-compatible V5.0+EDR enhanced rate, it supports high-speed and large-capacity transmission, which also has strong signal penetration, faster and more stable transmission.With 200mAh ultra-large-capacity and high-efficiency battery, it improves the use time of the headset and allows you to listen to songs and talk more lasting.Using skin-friendly memory material, imitating ergonomic neck-hanging design, the neck-hanging structure allows the weight of the earphones to be evenly distributed on the neck, and the liquid silicone material gives you a softer touch.Item Name: EarphoneBluetooth Version: 5.0Power Input: 5V1ASpeaker: 10mmSensitivity: 1205dBFrequency Response: 20-20000HzImpedance: 32Battery Capacity: 200mAh(Included)Effective Distance: 10m(Barrier-Free)Material: Plastic, Silicone, Aluminum AlloyFeatures: Magnetic, In-Ear Design, Neck-Hanging, Sweatproof, Large-Capacity Battery, Skin-FriendlySize: 20cm x 15cm x 2.5cm/7.87" x 5.91" x 0.98" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Earphone1 x USB Charging Cable