Ø12mm drive unit brings you clear sound Dedicated audio hole makes the low frequency more solid Able to play a wide, penetrating sound Microphone wire controller for operating smartphones and calls https://i.imgur.com/XgjiERL.jpg 【Product specifications】 Headphone section Type: moving coil type Drive unit: Ø12mm Output sensitivity: 106db/mW Frequency response: 20 ~ 20,000Hz Maximum withstand power: 10mW Input impedance: 33Ω Input terminal: Ø3.5mm gold-plated stereo mini plug (L type) Wire length: 1.2m (Y type) ※ The length of the left and right wires Microphone section Type: Capacitive type Pointing feature: omnidirectional Sensitivity: -42dB (1V/Pa, at 1kHz) Frequency response: 100~10,000Hz Weight: about 5g (without line) [Product Warranty] Non-human damage to the original factory warranty for one year [Returns need to know] 1. In accordance with the provisions of the Consumer Protection Law, consumers are entitled to the seven-day appreciation period of the goods (the non-trial period of the appreciation period). The earphones are classified as personal hygiene products, and they are deemed to be purchased when unpacking. Be sure to think twice before ordering or unpacking the goods. In order to avoid affecting their rights and interests 2. The return limit is brand new and unopened. 3. In case of new products, please inform the customer service to handle it for you. 4. New product 瑕疵 exchange, please keep the outer packaging and contents of the accessories intact, if the packaging carton is dirty or severely torn, can not be restored to the original state, or the accessories are lost, can not accept the exchange 【Precautions】 1. Bluetooth headset related time varies depending on personal use, phone settings and ambient/temperature 2. Due to differences in computer screen settings and personal perception, the product images of this store are for reference only, subject to the actual product received. 3. If the product specifications are incorrect, they will be based on physical objects. 4. Please follow the operation instructions and precautions in the product manual before use. 5. If there are any errors in the above specifications, the information published by the original factory shall prevail.