DCO XO-BE27 Collar Clip-On Wireless Headset

- New Bluetooth 5.0, Jerry 6976D Bluetooth solution- Bluetooth effective distance <10 meters- Best talking distance <10m- Maximum power of earphone 10mW- Headphone amplifier type: chip built-in- Audio signal-to-noise ratio: S/N >=90dB- Frequency response: 50Hz~20KHz- Speaker unit: 10mm, 32R copper ring- Built-in battery: Lithium battery: Earphone: 3.7V / 35mAh Charging stand: 3.7V / 250mAh- Music time: about 5 hours (80% volume)- Talk time: about 5 hours (80% volume)- Standby time: 780 hours- Charging input standard: Micro DC5V, 1000mA- Charging time: earphone: about 0.5 hour; charging box: about 1 hour- Battery cycle life The capacity after charging and discharging cycles >=300 times is 80% of the initial capacityChannel system: stereo- Bluetooth operating frequency: 2.402GHz-2.480GHz- Receiving sensitivity: -91 dBm- Support Bluetooth protocol SupportHands Free 1.6 Headset 1.1 A2DP 1.2 AVRCP 1.5Active and passive: active- Size: Charging box size: 50*23*20mmHeadphone size: 40*15*15mm- Weight: 20g- Main material: ABS