1、The heavy bass HiFi sound quality is highly restored to the original sound, presenting a powerful and wide sound range, the treble is full of dynamics, and the bass is strong and powerful. 2、Bluetooth V5.0+EDR high‑performance chip, ultra‑low power consumption, 2.1Mbps Bluetooth transmission rate, more stable connection signal, and more anti‑interference. 3、The semi‑in‑ear type is light and comfortable, and the silicone material is comfortable to wear without pain, super stable and fit, suitable for exercise. 4、Fully compatible, can quickly connect to for iOS and for Android systems, support mobile phones, for iPads, laptops and other devices 5、Intelligent touch, multi‑function one‑key operation, eliminating the pressure of the keys on the ears, giving you more comfortable music enjoyment. Item Type: Bluetooth Earphone Body Material: ABS Earplug Material: Silicone Bluetooth Version: Dual-Mode Bluetooth V5.0+EDR Support Protocol: For A2DP1.3 /HFP1.6 /HSP1.2 /AVRCP1.6 /D11.3 Signal Distance: Approx. 10-15m / 32.8-49.2ft Frequency Response Range: 20-20khz Charging Interface: Type-C Charging Time: 1 Hour Music Playing Time (Full Power): 3-4 hours Standby Time: 72 hours Headphone Battery: 30mAh Charging Case Battery: 300mAh How to Use: The Bluetooth name of this product is A8. The headset is automatically paired when it is turned on when the charging compartment is opened. The first pairing requires manual pairing, and the headset is inserted into the charging compartment to automatically shut down. 2 x Bluetooth Earphones 1 x Charging Case 1 x Data Cable 4 x Earplugs 1 x Manual