Heroes of Olympus - Book Two The Son of Neptune (Second International Edition) (The Heroes of Olympus)

Features Bluetooth version: 5.0 Horn type: moving coil horn Valid Range: ≥15M(Barrier-free distance in a straight line) Frequency: 20-20Khz Battery type: (Earphone) 50 mAh Li-polymer; (Case) 800 mAh Li-polymer Charge Time: 1.5H (Earbud) / 2H (case) Playback Time: 6 H x 16 times Standby Time: 60 Days What you get √1x wireless headphones with microphone √3 x Couples Silicone Ear Tips (S, M, L) √1x Magnetic induction charging box √1 x USB Charging Cable √1x instruction book Safety precautions ❤Do not throw, to avoid product damage caused by falling ❤Do not disassemble, repair or modify the product ❤Lithium ion battery is built into the product. Please do not discard or put it in the fire Warm prompt ❤ In order to extend the service life of the earphones and your physical and mental health, please do not listen to the sound in the environment of long and loud volume, so as not to damage your hearing ❤ In case of failure, please shut down immediately to prevent damage to the speaker and other components ❤ Lack of power will affect the bluetooth distance or bluetooth is easy to disconnect, please charge in time Service&Warranty 3 months no reason money-back guarantee and 18 moths replacement warranty, support 7*24h technology service, 69 hours quick reply.