K1 Handheld Bluetooth Microphone Mobile Phone Connection Support 1. Made of high-quality ABS plastic and metal material, fine workmanship, practical 2. Wireless Bluetooth microphone is portable and widely compatible 3. Built-in 2000mAh large capacity battery, long-lasting use 4. Clear sound quality, let you and your family or friends sing songs together 5. Suitable for car, fitness, sports, home, mobile portable, karaoke, live, dance, outdoor Specifications: 1. Main chip (sound card): BP1048B2 2. Power adapter: DC 5V1A 3. Battery: Built-in 3.7V2000mAh 4. Power indicator (LED): Power on: White; Charging: Red; Low battery status: Beep 5. Charging time: about 4 hours (power off) 6. Charging port: Type-C port 7. Bluetooth connection: Yes 8. Built-in battery use: Yes 9. Low power indication: Yes (beep) 10. Material: ABS plastic + metal 11. Product size: 205 x 72 x 72 mm