XO BE25 Bluetooth Silver

■ Master control chip: Jerry 6955F■ Bluetooth version:5.0+EDR compatible■ Frequency range: 2.402GHZ - 2.480GHZ■ Transmission power: +2dBm, Class2 output power■ Effective working range:≥10M■ Support Bluetooth protocol: AVRCP 1.0, GAVDP 1.0, AVDTP 1.0, A2DP 1.0■ Frequency response: 20hz-20khz■ S/N ratio:≥60dB■ Speaker Specifications40mm steel magnetic horn 12.5*1.5 four-hole U cup■ Vibrating membrane 19μ■ Microphone size: microphone high frequency omnidirectional microphone -42dB ±3dB ■ Power supply: 3.7VDC (built-in a- class rechargeable 400mAh lithium battery) ■ Talk time: 8 hours; Power off time: 200 days; Charging time: 3 - 4 hours ■ Operating current: ≤ 60mA■Off current:< 300 UA