Please note, this item ships from an international seller. Expected delivery is 10-15 days. E2 Bluetooth 5.0 single-ear earphone in-ear high-power long-standby business earphone Describe: 1. Surrounding earhook design: ergonomic, long-term wear, painless skin-friendly material + ergonomically designed ear bones, comfortable and durable to wear. 2. Simple Design: The earphones have a minimalist design and are available in two colors. 3. Stable transmission: a new generation of low-power Bluetooth chip, the signal is more stable and the speed is faster. 4. Comfortable to wear: the left and right ears can be switched freely, and the adjustment angle is no longer limited. 5. Sports waterproof: running, cycling, sports, can be easily dealt with Product Specifications: Bluetooth version: Bluetooth 5.0 Working distance: 15 meters Battery: Lithium Polymer Headphone capacity: 230mAh Usage time: 10 hours (depending on usage scenarios) Charging time: 2 hours Support method: Compatible with all Bluetooth versions Sound: HD sound quality Wearing method: wearing ear hooks Automatic matching at boot: support Package Included: 1 * Bluetooth Headset 1 * charging cable 1 * ear hook