◆ TYPE: Dynamic type / ◆ Reproduction frequency band: 20 Hz to 20,000 Hz / ◆ Communication method: Bluetooth® standard standard Ver. 4.2 / ◆ Output: Bluetooth® standard Power Class 2 / ◆ Maximum communication distance: about 10 m / ◆ Profile: A2DP / AVRCP / HFP / HSP / ◆ Corresponding codec: SBC / ◆ Corresponding content protection: SCMS-T method ◆ Power source: DC 3.7 V (built-in lithium polymer rechargeable battery) / ◆ Charging method: USB charging / ◆ Battery duration: ● Earphone: about 3 hours / ● Charging case: about 6 hours (depending on usage conditions) / ◆ charging time: ● Earphone: about 2 hours / ● Charging case: about 3 hours ◆ Mass: ● Earphone: about 6.5 g × 2 pieces / ● Charging case: about 35 g

Ergonomic in-ear design with adjustable angle, designed to fit for hours of comfortable listening. Earbud with microphone for Samsung, Android, iPhone, iPod, and mp3 players The unique fin design allows for stability during active use such as running or working out, keeping the earbud in place while still offering comfort Made with sweat-proof material, the Sopra can withstand your most intense workout routines