Description Are you looking for a professional wireless headset? This in-ear hook headphone can easily hang on your ear bu t not easily fall off when you are sporting, such as running, dancing. An youwon't feel uncomfortable after long time wearing due tothe ergonomic design. Meanwhile, easy-to-reach button allow you to control mobile device conveniently. Features - Color: As shown - Material: ABS - Size: About 15.00X 6.00X 2.50cm/ 5.89X 2.36X 0.98in -Voltage: DC5V -Standby time: About 240 hours. -Earphone battery capacity: 140mAh. -Charging case battery capacity: 500mAh. -Horn size: diameter for 10mm. -Charging case charging time: about 2 hours -Earphone charging time: about 1 hour -Prompt Tone: Chinese and English -SNR: 90dB. -Frequency: 20Hz-20KHz -Transmission distance: 10M HD voice and hands free conversation, provide clear sound and you can answer or end calls by clicking the headset from a certain distance. Flexible application, especially when you are doing sports, you can exercise when listening to the music with this compact headphone. Single in-ear headset designed as unique hook, can be hung on the ear stably and transmit signal steadily, compatible with most devices. Advanced BT 5.1 transmission technology provides smooth operation without delay, keep the continuous connection line within 10m. Easy to hang on and operate, ergonomic appearance fit for human ear wearing, so you can click the function key and control mobile device conveniently.Package list: 1 x Earphone 1 x Charging case 1 x Earphone cover 1 x charging cable 1 x User manual