bluetooth speaker KA53

FEATURES: 1. Wireless Bluetooth speaker 2. Compatible with various home devices 3. Supported function: Micro-SD card, FM, TWS connection, hands-free call 4. Magnetic suction 5. Bluetooth version: 5.3 6. Size: 6.66*6.66*4.96cm | PARAMETERS: Bluetooth version: 5.3 Supported protocols: A2DP, AVRCP, HSP, HFP Channel system: mono Maximum power: 5W Charging time: 2H Playing time: 4H (80% VOL) Battery capacity: 3.7V/800mAh Power input: DC5V/500mA Frequency range: 2.402GHz-2.480GHz Sensitivity: 81dB Accessories: user manual, USB charging cable