Offer your customers and supporters the gift of stupendous sound with this high-quality audio gear. This pair of wireless bluetooth earbuds are made of durable ABS plastic and comes in a oval charging case. Listen to all of your favorite music and audiobooks, chat hands free or use virtual assistant applications. Voice command means easy setup. It is designed to fit the shape of your ear. Add your school, sports team, organizational or company logo or message to customize. Features Bluetooth version:V5.0 12hr super long playtime Support: HFP1.7,HSP1.2,A2DP1.3,AVRCP1.6,SPP1.2and PBAP1.0 Impendance:32O ± 15% Sensitivity:97dB±3dB Frequency response:20Hz-20KH Rated power:2-3mW Max power:5mW Battery capacity:40mAh /300mAh Working time:4hrs Working time with charging box:12hrs Standby time:150hrs Charging time:about 1 hrs Certificate: CE,RoHs Price Includes: Free setups Free virtual proof Free logo PMS matching Free 1c imprint on 1 side Free standard shipping to 1 continental US commercial location